519888980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{28163}}^1$

素因数の和:28256

約数の個数: 48

約数和(自身を含む): 1192351104

約数和(自身を除く): 672462124

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 71, 130, 142, 260, 284, 355, 710, 923, 1420, 1846, 3692, 4615, 9230, 18460, 28163, 56326, 112652, 140815, 281630, 366119, 563260, 732238, 1464476, 1830595, 1999573, 3661190, 3999146, 7322380, 7998292, 9997865, 19995730, 25994449, 39991460, 51988898, 103977796, 129972245, 259944490, 519888980]

約数ペア:

[(1, 519888980), (2, 259944490), (4, 129972245), (5, 103977796), (10, 51988898), (13, 39991460), (20, 25994449), (26, 19995730), (52, 9997865), (65, 7998292), (71, 7322380), (130, 3999146), (142, 3661190), (260, 1999573), (284, 1830595), (355, 1464476), (710, 732238), (923, 563260), (1420, 366119), (1846, 281630), (3692, 140815), (4615, 112652), (9230, 56326), (18460, 28163)]