65250040

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{521}}^1$

素因数の和:664

約数の個数: 64

約数和(自身を含む): 153342720

約数和(自身を除く): 88092680

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 101, 124, 155, 202, 248, 310, 404, 505, 521, 620, 808, 1010, 1042, 1240, 2020, 2084, 2605, 3131, 4040, 4168, 5210, 6262, 10420, 12524, 15655, 16151, 20840, 25048, 31310, 32302, 52621, 62620, 64604, 80755, 105242, 125240, 129208, 161510, 210484, 263105, 323020, 420968, 526210, 646040, 1052420, 1631251, 2104840, 3262502, 6525004, 8156255, 13050008, 16312510, 32625020, 65250040]

約数ペア:

[(1, 65250040), (2, 32625020), (4, 16312510), (5, 13050008), (8, 8156255), (10, 6525004), (20, 3262502), (31, 2104840), (40, 1631251), (62, 1052420), (101, 646040), (124, 526210), (155, 420968), (202, 323020), (248, 263105), (310, 210484), (404, 161510), (505, 129208), (521, 125240), (620, 105242), (808, 80755), (1010, 64604), (1042, 62620), (1240, 52621), (2020, 32302), (2084, 31310), (2605, 25048), (3131, 20840), (4040, 16151), (4168, 15655), (5210, 12524), (6262, 10420)]