2445240

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:133

約数の個数: 128

約数和(自身を含む): 8709120

約数和(自身を除く): 6263880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 41, 42, 56, 60, 70, 71, 82, 84, 105, 120, 123, 140, 142, 164, 168, 205, 210, 213, 246, 280, 284, 287, 328, 355, 410, 420, 426, 492, 497, 568, 574, 615, 710, 820, 840, 852, 861, 984, 994, 1065, 1148, 1230, 1420, 1435, 1491, 1640, 1704, 1722, 1988, 2130, 2296, 2460, 2485, 2840, 2870, 2911, 2982, 3444, 3976, 4260, 4305, 4920, 4970, 5740, 5822, 5964, 6888, 7455, 8520, 8610, 8733, 9940, 11480, 11644, 11928, 14555, 14910, 17220, 17466, 19880, 20377, 23288, 29110, 29820, 34440, 34932, 40754, 43665, 58220, 59640, 61131, 69864, 81508, 87330, 101885, 116440, 122262, 163016, 174660, 203770, 244524, 305655, 349320, 407540, 489048, 611310, 815080, 1222620, 2445240]

約数ペア:

[(1, 2445240), (2, 1222620), (3, 815080), (4, 611310), (5, 489048), (6, 407540), (7, 349320), (8, 305655), (10, 244524), (12, 203770), (14, 174660), (15, 163016), (20, 122262), (21, 116440), (24, 101885), (28, 87330), (30, 81508), (35, 69864), (40, 61131), (41, 59640), (42, 58220), (56, 43665), (60, 40754), (70, 34932), (71, 34440), (82, 29820), (84, 29110), (105, 23288), (120, 20377), (123, 19880), (140, 17466), (142, 17220), (164, 14910), (168, 14555), (205, 11928), (210, 11644), (213, 11480), (246, 9940), (280, 8733), (284, 8610), (287, 8520), (328, 7455), (355, 6888), (410, 5964), (420, 5822), (426, 5740), (492, 4970), (497, 4920), (568, 4305), (574, 4260), (615, 3976), (710, 3444), (820, 2982), (840, 2911), (852, 2870), (861, 2840), (984, 2485), (994, 2460), (1065, 2296), (1148, 2130), (1230, 1988), (1420, 1722), (1435, 1704), (1491, 1640)]