31305560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{421}}^1$

素因数の和:469

約数の個数: 96

約数和(自身を含む): 83404080

約数和(自身を除く): 52098520

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 130, 143, 169, 220, 260, 286, 338, 421, 440, 520, 572, 676, 715, 842, 845, 1144, 1352, 1430, 1684, 1690, 1859, 2105, 2860, 3368, 3380, 3718, 4210, 4631, 5473, 5720, 6760, 7436, 8420, 9262, 9295, 10946, 14872, 16840, 18524, 18590, 21892, 23155, 27365, 37048, 37180, 43784, 46310, 54730, 60203, 71149, 74360, 92620, 109460, 120406, 142298, 185240, 218920, 240812, 284596, 301015, 355745, 481624, 569192, 602030, 711490, 782639, 1204060, 1422980, 1565278, 2408120, 2845960, 3130556, 3913195, 6261112, 7826390, 15652780, 31305560]

約数ペア:

[(1, 31305560), (2, 15652780), (4, 7826390), (5, 6261112), (8, 3913195), (10, 3130556), (11, 2845960), (13, 2408120), (20, 1565278), (22, 1422980), (26, 1204060), (40, 782639), (44, 711490), (52, 602030), (55, 569192), (65, 481624), (88, 355745), (104, 301015), (110, 284596), (130, 240812), (143, 218920), (169, 185240), (220, 142298), (260, 120406), (286, 109460), (338, 92620), (421, 74360), (440, 71149), (520, 60203), (572, 54730), (676, 46310), (715, 43784), (842, 37180), (845, 37048), (1144, 27365), (1352, 23155), (1430, 21892), (1684, 18590), (1690, 18524), (1859, 16840), (2105, 14872), (2860, 10946), (3368, 9295), (3380, 9262), (3718, 8420), (4210, 7436), (4631, 6760), (5473, 5720)]