821829764

素因数分解:

$2^2\times 7^2\times {\mathrm{107}}^1\times {\mathrm{149}}^1\times {\mathrm{263}}^1$

素因数の和:537

約数の個数: 72

約数和(自身を含む): 1706443200

約数和(自身を除く): 884613436

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 107, 149, 196, 214, 263, 298, 428, 526, 596, 749, 1043, 1052, 1498, 1841, 2086, 2996, 3682, 4172, 5243, 7301, 7364, 10486, 12887, 14602, 15943, 20972, 25774, 28141, 29204, 31886, 39187, 51548, 56282, 63772, 78374, 111601, 112564, 156748, 196987, 223202, 274309, 393974, 446404, 548618, 781207, 787948, 1097236, 1378909, 1562414, 1920163, 2757818, 3124828, 3840326, 4193009, 5515636, 7680652, 8386018, 16772036, 29351063, 58702126, 117404252, 205457441, 410914882, 821829764]

約数ペア:

[(1, 821829764), (2, 410914882), (4, 205457441), (7, 117404252), (14, 58702126), (28, 29351063), (49, 16772036), (98, 8386018), (107, 7680652), (149, 5515636), (196, 4193009), (214, 3840326), (263, 3124828), (298, 2757818), (428, 1920163), (526, 1562414), (596, 1378909), (749, 1097236), (1043, 787948), (1052, 781207), (1498, 548618), (1841, 446404), (2086, 393974), (2996, 274309), (3682, 223202), (4172, 196987), (5243, 156748), (7301, 112564), (7364, 111601), (10486, 78374), (12887, 63772), (14602, 56282), (15943, 51548), (20972, 39187), (25774, 31886), (28141, 29204)]