4257120

素因数分解:

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

素因数の和:213

約数の個数: 144

約数和(自身を含む): 15685488

約数和(自身を除く): 11428368

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 96, 98, 105, 112, 120, 140, 147, 160, 168, 181, 196, 210, 224, 240, 245, 280, 294, 336, 362, 392, 420, 480, 490, 543, 560, 588, 672, 724, 735, 784, 840, 905, 980, 1086, 1120, 1176, 1267, 1448, 1470, 1568, 1680, 1810, 1960, 2172, 2352, 2534, 2715, 2896, 2940, 3360, 3620, 3801, 3920, 4344, 4704, 5068, 5430, 5792, 5880, 6335, 7240, 7602, 7840, 8688, 8869, 10136, 10860, 11760, 12670, 14480, 15204, 17376, 17738, 19005, 20272, 21720, 23520, 25340, 26607, 28960, 30408, 35476, 38010, 40544, 43440, 44345, 50680, 53214, 60816, 70952, 76020, 86880, 88690, 101360, 106428, 121632, 133035, 141904, 152040, 177380, 202720, 212856, 266070, 283808, 304080, 354760, 425712, 532140, 608160, 709520, 851424, 1064280, 1419040, 2128560, 4257120]

約数ペア:

[(1, 4257120), (2, 2128560), (3, 1419040), (4, 1064280), (5, 851424), (6, 709520), (7, 608160), (8, 532140), (10, 425712), (12, 354760), (14, 304080), (15, 283808), (16, 266070), (20, 212856), (21, 202720), (24, 177380), (28, 152040), (30, 141904), (32, 133035), (35, 121632), (40, 106428), (42, 101360), (48, 88690), (49, 86880), (56, 76020), (60, 70952), (70, 60816), (80, 53214), (84, 50680), (96, 44345), (98, 43440), (105, 40544), (112, 38010), (120, 35476), (140, 30408), (147, 28960), (160, 26607), (168, 25340), (181, 23520), (196, 21720), (210, 20272), (224, 19005), (240, 17738), (245, 17376), (280, 15204), (294, 14480), (336, 12670), (362, 11760), (392, 10860), (420, 10136), (480, 8869), (490, 8688), (543, 7840), (560, 7602), (588, 7240), (672, 6335), (724, 5880), (735, 5792), (784, 5430), (840, 5068), (905, 4704), (980, 4344), (1086, 3920), (1120, 3801), (1176, 3620), (1267, 3360), (1448, 2940), (1470, 2896), (1568, 2715), (1680, 2534), (1810, 2352), (1960, 2172)]