20731830

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{269}}^1\times {\mathrm{367}}^1$

素因数の和:653

約数の個数: 64

約数和(自身を含む): 57231360

約数和(自身を除く): 36499530

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 269, 367, 538, 734, 807, 1101, 1345, 1614, 1835, 1883, 2202, 2569, 2690, 3670, 3766, 4035, 5138, 5505, 5649, 7707, 8070, 9415, 11010, 11298, 12845, 15414, 18830, 25690, 28245, 38535, 56490, 77070, 98723, 197446, 296169, 493615, 592338, 691061, 987230, 1382122, 1480845, 2073183, 2961690, 3455305, 4146366, 6910610, 10365915, 20731830]

約数ペア:

[(1, 20731830), (2, 10365915), (3, 6910610), (5, 4146366), (6, 3455305), (7, 2961690), (10, 2073183), (14, 1480845), (15, 1382122), (21, 987230), (30, 691061), (35, 592338), (42, 493615), (70, 296169), (105, 197446), (210, 98723), (269, 77070), (367, 56490), (538, 38535), (734, 28245), (807, 25690), (1101, 18830), (1345, 15414), (1614, 12845), (1835, 11298), (1883, 11010), (2202, 9415), (2569, 8070), (2690, 7707), (3670, 5649), (3766, 5505), (4035, 5138)]