353446340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{421}}^1\times {\mathrm{3229}}^1$

素因数の和:3672

約数の個数: 48

約数和(自身を含む): 801479280

約数和(自身を除く): 448032940

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 421, 842, 1684, 2105, 3229, 4210, 5473, 6458, 8420, 10946, 12916, 16145, 21892, 27365, 32290, 41977, 54730, 64580, 83954, 109460, 167908, 209885, 419770, 839540, 1359409, 2718818, 5437636, 6797045, 13594090, 17672317, 27188180, 35344634, 70689268, 88361585, 176723170, 353446340]

約数ペア:

[(1, 353446340), (2, 176723170), (4, 88361585), (5, 70689268), (10, 35344634), (13, 27188180), (20, 17672317), (26, 13594090), (52, 6797045), (65, 5437636), (130, 2718818), (260, 1359409), (421, 839540), (842, 419770), (1684, 209885), (2105, 167908), (3229, 109460), (4210, 83954), (5473, 64580), (6458, 54730), (8420, 41977), (10946, 32290), (12916, 27365), (16145, 21892)]