25267480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:161

約数の個数: 128

約数和(自身を含む): 69672960

約数和(自身を除く): 44405480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 41, 56, 62, 70, 71, 82, 124, 140, 142, 155, 164, 205, 217, 248, 280, 284, 287, 310, 328, 355, 410, 434, 497, 568, 574, 620, 710, 820, 868, 994, 1085, 1148, 1240, 1271, 1420, 1435, 1640, 1736, 1988, 2170, 2201, 2296, 2485, 2542, 2840, 2870, 2911, 3976, 4340, 4402, 4970, 5084, 5740, 5822, 6355, 8680, 8804, 8897, 9940, 10168, 11005, 11480, 11644, 12710, 14555, 15407, 17608, 17794, 19880, 20377, 22010, 23288, 25420, 29110, 30814, 35588, 40754, 44020, 44485, 50840, 58220, 61628, 71176, 77035, 81508, 88040, 88970, 90241, 101885, 116440, 123256, 154070, 163016, 177940, 180482, 203770, 308140, 355880, 360964, 407540, 451205, 616280, 631687, 721928, 815080, 902410, 1263374, 1804820, 2526748, 3158435, 3609640, 5053496, 6316870, 12633740, 25267480]

約数ペア:

[(1, 25267480), (2, 12633740), (4, 6316870), (5, 5053496), (7, 3609640), (8, 3158435), (10, 2526748), (14, 1804820), (20, 1263374), (28, 902410), (31, 815080), (35, 721928), (40, 631687), (41, 616280), (56, 451205), (62, 407540), (70, 360964), (71, 355880), (82, 308140), (124, 203770), (140, 180482), (142, 177940), (155, 163016), (164, 154070), (205, 123256), (217, 116440), (248, 101885), (280, 90241), (284, 88970), (287, 88040), (310, 81508), (328, 77035), (355, 71176), (410, 61628), (434, 58220), (497, 50840), (568, 44485), (574, 44020), (620, 40754), (710, 35588), (820, 30814), (868, 29110), (994, 25420), (1085, 23288), (1148, 22010), (1240, 20377), (1271, 19880), (1420, 17794), (1435, 17608), (1640, 15407), (1736, 14555), (1988, 12710), (2170, 11644), (2201, 11480), (2296, 11005), (2485, 10168), (2542, 9940), (2840, 8897), (2870, 8804), (2911, 8680), (3976, 6355), (4340, 5822), (4402, 5740), (4970, 5084)]