665112500

素因数分解:

$2^2\times 5^5\times {\mathrm{13}}^1\times {\mathrm{4093}}^1$

素因数の和:4135

約数の個数: 72

約数和(自身を含む): 1567134072

約数和(自身を除く): 902021572

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 250, 260, 325, 500, 625, 650, 1250, 1300, 1625, 2500, 3125, 3250, 4093, 6250, 6500, 8125, 8186, 12500, 16250, 16372, 20465, 32500, 40625, 40930, 53209, 81250, 81860, 102325, 106418, 162500, 204650, 212836, 266045, 409300, 511625, 532090, 1023250, 1064180, 1330225, 2046500, 2558125, 2660450, 5116250, 5320900, 6651125, 10232500, 12790625, 13302250, 25581250, 26604500, 33255625, 51162500, 66511250, 133022500, 166278125, 332556250, 665112500]

約数ペア:

[(1, 665112500), (2, 332556250), (4, 166278125), (5, 133022500), (10, 66511250), (13, 51162500), (20, 33255625), (25, 26604500), (26, 25581250), (50, 13302250), (52, 12790625), (65, 10232500), (100, 6651125), (125, 5320900), (130, 5116250), (250, 2660450), (260, 2558125), (325, 2046500), (500, 1330225), (625, 1064180), (650, 1023250), (1250, 532090), (1300, 511625), (1625, 409300), (2500, 266045), (3125, 212836), (3250, 204650), (4093, 162500), (6250, 106418), (6500, 102325), (8125, 81860), (8186, 81250), (12500, 53209), (16250, 40930), (16372, 40625), (20465, 32500)]