164080540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{421}}^1\times {\mathrm{1499}}^1$

素因数の和:1942

約数の個数: 48

約数和(自身を含む): 372204000

約数和(自身を除く): 208123460

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 421, 842, 1499, 1684, 2105, 2998, 4210, 5473, 5996, 7495, 8420, 10946, 14990, 19487, 21892, 27365, 29980, 38974, 54730, 77948, 97435, 109460, 194870, 389740, 631079, 1262158, 2524316, 3155395, 6310790, 8204027, 12621580, 16408054, 32816108, 41020135, 82040270, 164080540]

約数ペア:

[(1, 164080540), (2, 82040270), (4, 41020135), (5, 32816108), (10, 16408054), (13, 12621580), (20, 8204027), (26, 6310790), (52, 3155395), (65, 2524316), (130, 1262158), (260, 631079), (421, 389740), (842, 194870), (1499, 109460), (1684, 97435), (2105, 77948), (2998, 54730), (4210, 38974), (5473, 29980), (5996, 27365), (7495, 21892), (8420, 19487), (10946, 14990)]