821934540

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{72481}}^1$

素因数の和:72509

約数の個数: 120

約数和(自身を含む): 2946828192

約数和(自身を除く): 2124893652

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 81, 84, 90, 105, 108, 126, 135, 140, 162, 180, 189, 210, 252, 270, 315, 324, 378, 405, 420, 540, 567, 630, 756, 810, 945, 1134, 1260, 1620, 1890, 2268, 2835, 3780, 5670, 11340, 72481, 144962, 217443, 289924, 362405, 434886, 507367, 652329, 724810, 869772, 1014734, 1087215, 1304658, 1449620, 1522101, 1956987, 2029468, 2174430, 2536835, 2609316, 3044202, 3261645, 3913974, 4348860, 4566303, 5073670, 5870961, 6088404, 6523290, 7610505, 7827948, 9132606, 9784935, 10147340, 11741922, 13046580, 13698909, 15221010, 18265212, 19569870, 22831515, 23483844, 27397818, 29354805, 30442020, 39139740, 41096727, 45663030, 54795636, 58709610, 68494545, 82193454, 91326060, 117419220, 136989090, 164386908, 205483635, 273978180, 410967270, 821934540]

約数ペア:

[(1, 821934540), (2, 410967270), (3, 273978180), (4, 205483635), (5, 164386908), (6, 136989090), (7, 117419220), (9, 91326060), (10, 82193454), (12, 68494545), (14, 58709610), (15, 54795636), (18, 45663030), (20, 41096727), (21, 39139740), (27, 30442020), (28, 29354805), (30, 27397818), (35, 23483844), (36, 22831515), (42, 19569870), (45, 18265212), (54, 15221010), (60, 13698909), (63, 13046580), (70, 11741922), (81, 10147340), (84, 9784935), (90, 9132606), (105, 7827948), (108, 7610505), (126, 6523290), (135, 6088404), (140, 5870961), (162, 5073670), (180, 4566303), (189, 4348860), (210, 3913974), (252, 3261645), (270, 3044202), (315, 2609316), (324, 2536835), (378, 2174430), (405, 2029468), (420, 1956987), (540, 1522101), (567, 1449620), (630, 1304658), (756, 1087215), (810, 1014734), (945, 869772), (1134, 724810), (1260, 652329), (1620, 507367), (1890, 434886), (2268, 362405), (2835, 289924), (3780, 217443), (5670, 144962), (11340, 72481)]