28932500

素因数分解:

$2^2\times 5^4\times {\mathrm{71}}^1\times {\mathrm{163}}^1$

素因数の和:258

約数の個数: 60

約数和(自身を含む): 64554336

約数和(自身を除く): 35621836

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 71, 100, 125, 142, 163, 250, 284, 326, 355, 500, 625, 652, 710, 815, 1250, 1420, 1630, 1775, 2500, 3260, 3550, 4075, 7100, 8150, 8875, 11573, 16300, 17750, 20375, 23146, 35500, 40750, 44375, 46292, 57865, 81500, 88750, 101875, 115730, 177500, 203750, 231460, 289325, 407500, 578650, 1157300, 1446625, 2893250, 5786500, 7233125, 14466250, 28932500]

約数ペア:

[(1, 28932500), (2, 14466250), (4, 7233125), (5, 5786500), (10, 2893250), (20, 1446625), (25, 1157300), (50, 578650), (71, 407500), (100, 289325), (125, 231460), (142, 203750), (163, 177500), (250, 115730), (284, 101875), (326, 88750), (355, 81500), (500, 57865), (625, 46292), (652, 44375), (710, 40750), (815, 35500), (1250, 23146), (1420, 20375), (1630, 17750), (1775, 16300), (2500, 11573), (3260, 8875), (3550, 8150), (4075, 7100)]