12779440

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{5153}}^1$

素因数の和:5197

約数の個数: 40

約数和(自身を含む): 30676608

約数和(自身を除く): 17897168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 5153, 10306, 20612, 25765, 41224, 51530, 82448, 103060, 159743, 206120, 319486, 412240, 638972, 798715, 1277944, 1597430, 2555888, 3194860, 6389720, 12779440]

約数ペア:

[(1, 12779440), (2, 6389720), (4, 3194860), (5, 2555888), (8, 1597430), (10, 1277944), (16, 798715), (20, 638972), (31, 412240), (40, 319486), (62, 206120), (80, 159743), (124, 103060), (155, 82448), (248, 51530), (310, 41224), (496, 25765), (620, 20612), (1240, 10306), (2480, 5153)]