25139872

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{1249}}^1$

素因数の和:1313

約数の個数: 48

約数和(自身を含む): 53865000

約数和(自身を除く): 28725128

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 37, 68, 74, 136, 148, 272, 296, 544, 592, 629, 1184, 1249, 1258, 2498, 2516, 4996, 5032, 9992, 10064, 19984, 20128, 21233, 39968, 42466, 46213, 84932, 92426, 169864, 184852, 339728, 369704, 679456, 739408, 785621, 1478816, 1571242, 3142484, 6284968, 12569936, 25139872]

約数ペア:

[(1, 25139872), (2, 12569936), (4, 6284968), (8, 3142484), (16, 1571242), (17, 1478816), (32, 785621), (34, 739408), (37, 679456), (68, 369704), (74, 339728), (136, 184852), (148, 169864), (272, 92426), (296, 84932), (544, 46213), (592, 42466), (629, 39968), (1184, 21233), (1249, 20128), (1258, 19984), (2498, 10064), (2516, 9992), (4996, 5032)]