720835240

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{457}}^1\times {\mathrm{839}}^1$

素因数の和:1354

約数の個数: 64

約数和(自身を含む): 1661990400

約数和(自身を除く): 941155160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 457, 470, 839, 914, 940, 1678, 1828, 1880, 2285, 3356, 3656, 4195, 4570, 6712, 8390, 9140, 16780, 18280, 21479, 33560, 39433, 42958, 78866, 85916, 107395, 157732, 171832, 197165, 214790, 315464, 383423, 394330, 429580, 766846, 788660, 859160, 1533692, 1577320, 1917115, 3067384, 3834230, 7668460, 15336920, 18020881, 36041762, 72083524, 90104405, 144167048, 180208810, 360417620, 720835240]

約数ペア:

[(1, 720835240), (2, 360417620), (4, 180208810), (5, 144167048), (8, 90104405), (10, 72083524), (20, 36041762), (40, 18020881), (47, 15336920), (94, 7668460), (188, 3834230), (235, 3067384), (376, 1917115), (457, 1577320), (470, 1533692), (839, 859160), (914, 788660), (940, 766846), (1678, 429580), (1828, 394330), (1880, 383423), (2285, 315464), (3356, 214790), (3656, 197165), (4195, 171832), (4570, 157732), (6712, 107395), (8390, 85916), (9140, 78866), (16780, 42958), (18280, 39433), (21479, 33560)]