19791520

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{431}}^1$

素因数の和:494

約数の個数: 96

約数和(自身を含む): 54867456

約数和(自身を除く): 35075936

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 41, 56, 70, 80, 82, 112, 140, 160, 164, 205, 224, 280, 287, 328, 410, 431, 560, 574, 656, 820, 862, 1120, 1148, 1312, 1435, 1640, 1724, 2155, 2296, 2870, 3017, 3280, 3448, 4310, 4592, 5740, 6034, 6560, 6896, 8620, 9184, 11480, 12068, 13792, 15085, 17240, 17671, 22960, 24136, 30170, 34480, 35342, 45920, 48272, 60340, 68960, 70684, 88355, 96544, 120680, 123697, 141368, 176710, 241360, 247394, 282736, 353420, 482720, 494788, 565472, 618485, 706840, 989576, 1236970, 1413680, 1979152, 2473940, 2827360, 3958304, 4947880, 9895760, 19791520]

約数ペア:

[(1, 19791520), (2, 9895760), (4, 4947880), (5, 3958304), (7, 2827360), (8, 2473940), (10, 1979152), (14, 1413680), (16, 1236970), (20, 989576), (28, 706840), (32, 618485), (35, 565472), (40, 494788), (41, 482720), (56, 353420), (70, 282736), (80, 247394), (82, 241360), (112, 176710), (140, 141368), (160, 123697), (164, 120680), (205, 96544), (224, 88355), (280, 70684), (287, 68960), (328, 60340), (410, 48272), (431, 45920), (560, 35342), (574, 34480), (656, 30170), (820, 24136), (862, 22960), (1120, 17671), (1148, 17240), (1312, 15085), (1435, 13792), (1640, 12068), (1724, 11480), (2155, 9184), (2296, 8620), (2870, 6896), (3017, 6560), (3280, 6034), (3448, 5740), (4310, 4592)]