31291900

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{233}}^1$

素因数の和:343

約数の個数: 72

約数和(自身を含む): 73120320

約数和(自身を除く): 41828420

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 79, 85, 100, 158, 170, 233, 316, 340, 395, 425, 466, 790, 850, 932, 1165, 1343, 1580, 1700, 1975, 2330, 2686, 3950, 3961, 4660, 5372, 5825, 6715, 7900, 7922, 11650, 13430, 15844, 18407, 19805, 23300, 26860, 33575, 36814, 39610, 67150, 73628, 79220, 92035, 99025, 134300, 184070, 198050, 312919, 368140, 396100, 460175, 625838, 920350, 1251676, 1564595, 1840700, 3129190, 6258380, 7822975, 15645950, 31291900]

約数ペア:

[(1, 31291900), (2, 15645950), (4, 7822975), (5, 6258380), (10, 3129190), (17, 1840700), (20, 1564595), (25, 1251676), (34, 920350), (50, 625838), (68, 460175), (79, 396100), (85, 368140), (100, 312919), (158, 198050), (170, 184070), (233, 134300), (316, 99025), (340, 92035), (395, 79220), (425, 73628), (466, 67150), (790, 39610), (850, 36814), (932, 33575), (1165, 26860), (1343, 23300), (1580, 19805), (1700, 18407), (1975, 15844), (2330, 13430), (2686, 11650), (3950, 7922), (3961, 7900), (4660, 6715), (5372, 5825)]