20121520280

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29590471}}^1$

素因数の和:29590499

約数の個数: 32

約数和(自身を含む): 47936564640

約数和(自身を除く): 27815044360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 29590471, 59180942, 118361884, 147952355, 236723768, 295904710, 503038007, 591809420, 1006076014, 1183618840, 2012152028, 2515190035, 4024304056, 5030380070, 10060760140, 20121520280]

約数ペア:

[(1, 20121520280), (2, 10060760140), (4, 5030380070), (5, 4024304056), (8, 2515190035), (10, 2012152028), (17, 1183618840), (20, 1006076014), (34, 591809420), (40, 503038007), (68, 295904710), (85, 236723768), (136, 147952355), (170, 118361884), (340, 59180942), (680, 29590471)]