81562550

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{521}}^1$

素因数の和:665

約数の個数: 48

約数和(自身を含む): 158454144

約数和(自身を除く): 76891594

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 101, 155, 202, 310, 505, 521, 775, 1010, 1042, 1550, 2525, 2605, 3131, 5050, 5210, 6262, 13025, 15655, 16151, 26050, 31310, 32302, 52621, 78275, 80755, 105242, 156550, 161510, 263105, 403775, 526210, 807550, 1315525, 1631251, 2631050, 3262502, 8156255, 16312510, 40781275, 81562550]

約数ペア:

[(1, 81562550), (2, 40781275), (5, 16312510), (10, 8156255), (25, 3262502), (31, 2631050), (50, 1631251), (62, 1315525), (101, 807550), (155, 526210), (202, 403775), (310, 263105), (505, 161510), (521, 156550), (775, 105242), (1010, 80755), (1042, 78275), (1550, 52621), (2525, 32302), (2605, 31310), (3131, 26050), (5050, 16151), (5210, 15655), (6262, 13025)]