28735560

素因数分解:

$2^3\times 3^4\times 5^1\times 7^2\times {\mathrm{181}}^1$

素因数の和:218

約数の個数: 240

約数和(自身を含む): 112972860

約数和(自身を除く): 84237300

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 49, 54, 56, 60, 63, 70, 72, 81, 84, 90, 98, 105, 108, 120, 126, 135, 140, 147, 162, 168, 180, 181, 189, 196, 210, 216, 245, 252, 270, 280, 294, 315, 324, 360, 362, 378, 392, 405, 420, 441, 490, 504, 540, 543, 567, 588, 630, 648, 724, 735, 756, 810, 840, 882, 905, 945, 980, 1080, 1086, 1134, 1176, 1260, 1267, 1323, 1448, 1470, 1512, 1620, 1629, 1764, 1810, 1890, 1960, 2172, 2205, 2268, 2520, 2534, 2646, 2715, 2835, 2940, 3240, 3258, 3528, 3620, 3780, 3801, 3969, 4344, 4410, 4536, 4887, 5068, 5292, 5430, 5670, 5880, 6335, 6516, 6615, 7240, 7560, 7602, 7938, 8145, 8820, 8869, 9774, 10136, 10584, 10860, 11340, 11403, 12670, 13032, 13230, 14661, 15204, 15876, 16290, 17640, 17738, 19005, 19548, 19845, 21720, 22680, 22806, 24435, 25340, 26460, 26607, 29322, 30408, 31752, 32580, 34209, 35476, 38010, 39096, 39690, 44345, 45612, 48870, 50680, 52920, 53214, 57015, 58644, 65160, 68418, 70952, 73305, 76020, 79380, 79821, 88690, 91224, 97740, 102627, 106428, 114030, 117288, 133035, 136836, 146610, 152040, 158760, 159642, 171045, 177380, 195480, 205254, 212856, 228060, 239463, 266070, 273672, 293220, 319284, 342090, 354760, 399105, 410508, 456120, 478926, 513135, 532140, 586440, 638568, 684180, 718389, 798210, 821016, 957852, 1026270, 1064280, 1197315, 1368360, 1436778, 1596420, 1915704, 2052540, 2394630, 2873556, 3192840, 3591945, 4105080, 4789260, 5747112, 7183890, 9578520, 14367780, 28735560]

約数ペア:

[(1, 28735560), (2, 14367780), (3, 9578520), (4, 7183890), (5, 5747112), (6, 4789260), (7, 4105080), (8, 3591945), (9, 3192840), (10, 2873556), (12, 2394630), (14, 2052540), (15, 1915704), (18, 1596420), (20, 1436778), (21, 1368360), (24, 1197315), (27, 1064280), (28, 1026270), (30, 957852), (35, 821016), (36, 798210), (40, 718389), (42, 684180), (45, 638568), (49, 586440), (54, 532140), (56, 513135), (60, 478926), (63, 456120), (70, 410508), (72, 399105), (81, 354760), (84, 342090), (90, 319284), (98, 293220), (105, 273672), (108, 266070), (120, 239463), (126, 228060), (135, 212856), (140, 205254), (147, 195480), (162, 177380), (168, 171045), (180, 159642), (181, 158760), (189, 152040), (196, 146610), (210, 136836), (216, 133035), (245, 117288), (252, 114030), (270, 106428), (280, 102627), (294, 97740), (315, 91224), (324, 88690), (360, 79821), (362, 79380), (378, 76020), (392, 73305), (405, 70952), (420, 68418), (441, 65160), (490, 58644), (504, 57015), (540, 53214), (543, 52920), (567, 50680), (588, 48870), (630, 45612), (648, 44345), (724, 39690), (735, 39096), (756, 38010), (810, 35476), (840, 34209), (882, 32580), (905, 31752), (945, 30408), (980, 29322), (1080, 26607), (1086, 26460), (1134, 25340), (1176, 24435), (1260, 22806), (1267, 22680), (1323, 21720), (1448, 19845), (1470, 19548), (1512, 19005), (1620, 17738), (1629, 17640), (1764, 16290), (1810, 15876), (1890, 15204), (1960, 14661), (2172, 13230), (2205, 13032), (2268, 12670), (2520, 11403), (2534, 11340), (2646, 10860), (2715, 10584), (2835, 10136), (2940, 9774), (3240, 8869), (3258, 8820), (3528, 8145), (3620, 7938), (3780, 7602), (3801, 7560), (3969, 7240), (4344, 6615), (4410, 6516), (4536, 6335), (4887, 5880), (5068, 5670), (5292, 5430)]