80258750

素因数分解:

$2^1\times 5^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{449}}^1$

素因数の和:495

約数の個数: 80

約数和(自身を含む): 177130800

約数和(自身を除く): 96872050

約数列:

[1, 2, 5, 10, 11, 13, 22, 25, 26, 50, 55, 65, 110, 125, 130, 143, 250, 275, 286, 325, 449, 550, 625, 650, 715, 898, 1250, 1375, 1430, 1625, 2245, 2750, 3250, 3575, 4490, 4939, 5837, 6875, 7150, 8125, 9878, 11225, 11674, 13750, 16250, 17875, 22450, 24695, 29185, 35750, 49390, 56125, 58370, 64207, 89375, 112250, 123475, 128414, 145925, 178750, 246950, 280625, 291850, 321035, 561250, 617375, 642070, 729625, 1234750, 1459250, 1605175, 3086875, 3210350, 3648125, 6173750, 7296250, 8025875, 16051750, 40129375, 80258750]

約数ペア:

[(1, 80258750), (2, 40129375), (5, 16051750), (10, 8025875), (11, 7296250), (13, 6173750), (22, 3648125), (25, 3210350), (26, 3086875), (50, 1605175), (55, 1459250), (65, 1234750), (110, 729625), (125, 642070), (130, 617375), (143, 561250), (250, 321035), (275, 291850), (286, 280625), (325, 246950), (449, 178750), (550, 145925), (625, 128414), (650, 123475), (715, 112250), (898, 89375), (1250, 64207), (1375, 58370), (1430, 56125), (1625, 49390), (2245, 35750), (2750, 29185), (3250, 24695), (3575, 22450), (4490, 17875), (4939, 16250), (5837, 13750), (6875, 11674), (7150, 11225), (8125, 9878)]