80196400

素因数分解:

$2^4\times 5^2\times {\mathrm{23}}^2\times {\mathrm{379}}^1$

素因数の和:443

約数の個数: 90

約数和(自身を含む): 201944540

約数和(自身を除く): 121748140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 40, 46, 50, 80, 92, 100, 115, 184, 200, 230, 368, 379, 400, 460, 529, 575, 758, 920, 1058, 1150, 1516, 1840, 1895, 2116, 2300, 2645, 3032, 3790, 4232, 4600, 5290, 6064, 7580, 8464, 8717, 9200, 9475, 10580, 13225, 15160, 17434, 18950, 21160, 26450, 30320, 34868, 37900, 42320, 43585, 52900, 69736, 75800, 87170, 105800, 139472, 151600, 174340, 200491, 211600, 217925, 348680, 400982, 435850, 697360, 801964, 871700, 1002455, 1603928, 1743400, 2004910, 3207856, 3486800, 4009820, 5012275, 8019640, 10024550, 16039280, 20049100, 40098200, 80196400]

約数ペア:

[(1, 80196400), (2, 40098200), (4, 20049100), (5, 16039280), (8, 10024550), (10, 8019640), (16, 5012275), (20, 4009820), (23, 3486800), (25, 3207856), (40, 2004910), (46, 1743400), (50, 1603928), (80, 1002455), (92, 871700), (100, 801964), (115, 697360), (184, 435850), (200, 400982), (230, 348680), (368, 217925), (379, 211600), (400, 200491), (460, 174340), (529, 151600), (575, 139472), (758, 105800), (920, 87170), (1058, 75800), (1150, 69736), (1516, 52900), (1840, 43585), (1895, 42320), (2116, 37900), (2300, 34868), (2645, 30320), (3032, 26450), (3790, 21160), (4232, 18950), (4600, 17434), (5290, 15160), (6064, 13225), (7580, 10580), (8464, 9475), (8717, 9200)]