20339340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{613}}^1$

素因数の和:711

約数の個数: 96

約数和(自身を含む): 66017280

約数和(自身を除く): 45677940

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 79, 84, 105, 140, 158, 210, 237, 316, 395, 420, 474, 553, 613, 790, 948, 1106, 1185, 1226, 1580, 1659, 1839, 2212, 2370, 2452, 2765, 3065, 3318, 3678, 4291, 4740, 5530, 6130, 6636, 7356, 8295, 8582, 9195, 11060, 12260, 12873, 16590, 17164, 18390, 21455, 25746, 33180, 36780, 42910, 48427, 51492, 64365, 85820, 96854, 128730, 145281, 193708, 242135, 257460, 290562, 338989, 484270, 581124, 677978, 726405, 968540, 1016967, 1355956, 1452810, 1694945, 2033934, 2905620, 3389890, 4067868, 5084835, 6779780, 10169670, 20339340]

約数ペア:

[(1, 20339340), (2, 10169670), (3, 6779780), (4, 5084835), (5, 4067868), (6, 3389890), (7, 2905620), (10, 2033934), (12, 1694945), (14, 1452810), (15, 1355956), (20, 1016967), (21, 968540), (28, 726405), (30, 677978), (35, 581124), (42, 484270), (60, 338989), (70, 290562), (79, 257460), (84, 242135), (105, 193708), (140, 145281), (158, 128730), (210, 96854), (237, 85820), (316, 64365), (395, 51492), (420, 48427), (474, 42910), (553, 36780), (613, 33180), (790, 25746), (948, 21455), (1106, 18390), (1185, 17164), (1226, 16590), (1580, 12873), (1659, 12260), (1839, 11060), (2212, 9195), (2370, 8582), (2452, 8295), (2765, 7356), (3065, 6636), (3318, 6130), (3678, 5530), (4291, 4740)]