123456480

素因数分解:

$2^5\times 3^1\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{181}}^1$

素因数の和:242

約数の個数: 288

約数和(自身を含む): 470564640

約数和(自身を除く): 347108160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 29, 30, 32, 35, 40, 42, 48, 49, 56, 58, 60, 70, 80, 84, 87, 96, 98, 105, 112, 116, 120, 140, 145, 147, 160, 168, 174, 181, 196, 203, 210, 224, 232, 240, 245, 280, 290, 294, 336, 348, 362, 392, 406, 420, 435, 464, 480, 490, 543, 560, 580, 588, 609, 672, 696, 724, 735, 784, 812, 840, 870, 905, 928, 980, 1015, 1086, 1120, 1160, 1176, 1218, 1267, 1392, 1421, 1448, 1470, 1568, 1624, 1680, 1740, 1810, 1960, 2030, 2172, 2320, 2352, 2436, 2534, 2715, 2784, 2842, 2896, 2940, 3045, 3248, 3360, 3480, 3620, 3801, 3920, 4060, 4263, 4344, 4640, 4704, 4872, 5068, 5249, 5430, 5684, 5792, 5880, 6090, 6335, 6496, 6960, 7105, 7240, 7602, 7840, 8120, 8526, 8688, 8869, 9744, 10136, 10498, 10860, 11368, 11760, 12180, 12670, 13920, 14210, 14480, 15204, 15747, 16240, 17052, 17376, 17738, 19005, 19488, 20272, 20996, 21315, 21720, 22736, 23520, 24360, 25340, 26245, 26607, 28420, 28960, 30408, 31494, 32480, 34104, 35476, 36743, 38010, 40544, 41992, 42630, 43440, 44345, 45472, 48720, 50680, 52490, 53214, 56840, 60816, 62988, 68208, 70952, 73486, 76020, 78735, 83984, 85260, 86880, 88690, 97440, 101360, 104980, 106428, 110229, 113680, 121632, 125976, 133035, 136416, 141904, 146972, 152040, 157470, 167968, 170520, 177380, 183715, 202720, 209960, 212856, 220458, 227360, 251952, 257201, 266070, 283808, 293944, 304080, 314940, 341040, 354760, 367430, 419920, 425712, 440916, 503904, 514402, 532140, 551145, 587888, 608160, 629880, 682080, 709520, 734860, 771603, 839840, 851424, 881832, 1028804, 1064280, 1102290, 1175776, 1259760, 1286005, 1419040, 1469720, 1543206, 1763664, 2057608, 2128560, 2204580, 2519520, 2572010, 2939440, 3086412, 3527328, 3858015, 4115216, 4257120, 4409160, 5144020, 5878880, 6172824, 7716030, 8230432, 8818320, 10288040, 12345648, 15432060, 17636640, 20576080, 24691296, 30864120, 41152160, 61728240, 123456480]

約数ペア:

[(1, 123456480), (2, 61728240), (3, 41152160), (4, 30864120), (5, 24691296), (6, 20576080), (7, 17636640), (8, 15432060), (10, 12345648), (12, 10288040), (14, 8818320), (15, 8230432), (16, 7716030), (20, 6172824), (21, 5878880), (24, 5144020), (28, 4409160), (29, 4257120), (30, 4115216), (32, 3858015), (35, 3527328), (40, 3086412), (42, 2939440), (48, 2572010), (49, 2519520), (56, 2204580), (58, 2128560), (60, 2057608), (70, 1763664), (80, 1543206), (84, 1469720), (87, 1419040), (96, 1286005), (98, 1259760), (105, 1175776), (112, 1102290), (116, 1064280), (120, 1028804), (140, 881832), (145, 851424), (147, 839840), (160, 771603), (168, 734860), (174, 709520), (181, 682080), (196, 629880), (203, 608160), (210, 587888), (224, 551145), (232, 532140), (240, 514402), (245, 503904), (280, 440916), (290, 425712), (294, 419920), (336, 367430), (348, 354760), (362, 341040), (392, 314940), (406, 304080), (420, 293944), (435, 283808), (464, 266070), (480, 257201), (490, 251952), (543, 227360), (560, 220458), (580, 212856), (588, 209960), (609, 202720), (672, 183715), (696, 177380), (724, 170520), (735, 167968), (784, 157470), (812, 152040), (840, 146972), (870, 141904), (905, 136416), (928, 133035), (980, 125976), (1015, 121632), (1086, 113680), (1120, 110229), (1160, 106428), (1176, 104980), (1218, 101360), (1267, 97440), (1392, 88690), (1421, 86880), (1448, 85260), (1470, 83984), (1568, 78735), (1624, 76020), (1680, 73486), (1740, 70952), (1810, 68208), (1960, 62988), (2030, 60816), (2172, 56840), (2320, 53214), (2352, 52490), (2436, 50680), (2534, 48720), (2715, 45472), (2784, 44345), (2842, 43440), (2896, 42630), (2940, 41992), (3045, 40544), (3248, 38010), (3360, 36743), (3480, 35476), (3620, 34104), (3801, 32480), (3920, 31494), (4060, 30408), (4263, 28960), (4344, 28420), (4640, 26607), (4704, 26245), (4872, 25340), (5068, 24360), (5249, 23520), (5430, 22736), (5684, 21720), (5792, 21315), (5880, 20996), (6090, 20272), (6335, 19488), (6496, 19005), (6960, 17738), (7105, 17376), (7240, 17052), (7602, 16240), (7840, 15747), (8120, 15204), (8526, 14480), (8688, 14210), (8869, 13920), (9744, 12670), (10136, 12180), (10498, 11760), (10860, 11368)]