25250440

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{523}}^1$

素因数の和:622

約数の個数: 64

約数和(自身を含む): 61119360

約数和(自身を除く): 35868920

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 71, 85, 136, 142, 170, 284, 340, 355, 523, 568, 680, 710, 1046, 1207, 1420, 2092, 2414, 2615, 2840, 4184, 4828, 5230, 6035, 8891, 9656, 10460, 12070, 17782, 20920, 24140, 35564, 37133, 44455, 48280, 71128, 74266, 88910, 148532, 177820, 185665, 297064, 355640, 371330, 631261, 742660, 1262522, 1485320, 2525044, 3156305, 5050088, 6312610, 12625220, 25250440]

約数ペア:

[(1, 25250440), (2, 12625220), (4, 6312610), (5, 5050088), (8, 3156305), (10, 2525044), (17, 1485320), (20, 1262522), (34, 742660), (40, 631261), (68, 371330), (71, 355640), (85, 297064), (136, 185665), (142, 177820), (170, 148532), (284, 88910), (340, 74266), (355, 71128), (523, 48280), (568, 44455), (680, 37133), (710, 35564), (1046, 24140), (1207, 20920), (1420, 17782), (2092, 12070), (2414, 10460), (2615, 9656), (2840, 8891), (4184, 6035), (4828, 5230)]