921306820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{21863}}^1$

素因数の和:21929

約数の個数: 72

約数和(自身を含む): 2303066304

約数和(自身を除く): 1381759484

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 49, 70, 86, 98, 140, 172, 196, 215, 245, 301, 430, 490, 602, 860, 980, 1204, 1505, 2107, 3010, 4214, 6020, 8428, 10535, 21070, 21863, 42140, 43726, 87452, 109315, 153041, 218630, 306082, 437260, 612164, 765205, 940109, 1071287, 1530410, 1880218, 2142574, 3060820, 3760436, 4285148, 4700545, 5356435, 6580763, 9401090, 10712870, 13161526, 18802180, 21425740, 26323052, 32903815, 46065341, 65807630, 92130682, 131615260, 184261364, 230326705, 460653410, 921306820]

約数ペア:

[(1, 921306820), (2, 460653410), (4, 230326705), (5, 184261364), (7, 131615260), (10, 92130682), (14, 65807630), (20, 46065341), (28, 32903815), (35, 26323052), (43, 21425740), (49, 18802180), (70, 13161526), (86, 10712870), (98, 9401090), (140, 6580763), (172, 5356435), (196, 4700545), (215, 4285148), (245, 3760436), (301, 3060820), (430, 2142574), (490, 1880218), (602, 1530410), (860, 1071287), (980, 940109), (1204, 765205), (1505, 612164), (2107, 437260), (3010, 306082), (4214, 218630), (6020, 153041), (8428, 109315), (10535, 87452), (21070, 43726), (21863, 42140)]