31612750

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:238

約数の個数: 64

約数和(自身を含む): 65100672

約数和(自身を除く): 33487922

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 71, 125, 130, 137, 142, 250, 274, 325, 355, 650, 685, 710, 923, 1370, 1625, 1775, 1781, 1846, 3250, 3425, 3550, 3562, 4615, 6850, 8875, 8905, 9230, 9727, 17125, 17750, 17810, 19454, 23075, 34250, 44525, 46150, 48635, 89050, 97270, 115375, 126451, 222625, 230750, 243175, 252902, 445250, 486350, 632255, 1215875, 1264510, 2431750, 3161275, 6322550, 15806375, 31612750]

約数ペア:

[(1, 31612750), (2, 15806375), (5, 6322550), (10, 3161275), (13, 2431750), (25, 1264510), (26, 1215875), (50, 632255), (65, 486350), (71, 445250), (125, 252902), (130, 243175), (137, 230750), (142, 222625), (250, 126451), (274, 115375), (325, 97270), (355, 89050), (650, 48635), (685, 46150), (710, 44525), (923, 34250), (1370, 23075), (1625, 19454), (1775, 17810), (1781, 17750), (1846, 17125), (3250, 9727), (3425, 9230), (3550, 8905), (3562, 8875), (4615, 6850)]