2020978025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{239}}^1\times {\mathrm{317}}^1$

素因数の和:674

約数の個数: 48

約数和(自身を含む): 2782321920

約数和(自身を除く): 761343895

約数列:

[1, 5, 11, 25, 55, 97, 239, 275, 317, 485, 1067, 1195, 1585, 2425, 2629, 3487, 5335, 5975, 7925, 13145, 17435, 23183, 26675, 30749, 65725, 75763, 87175, 115915, 153745, 255013, 338239, 378815, 579575, 768725, 833393, 1275065, 1691195, 1894075, 4166965, 6375325, 7349011, 8455975, 20834825, 36745055, 80839121, 183725275, 404195605, 2020978025]

約数ペア:

[(1, 2020978025), (5, 404195605), (11, 183725275), (25, 80839121), (55, 36745055), (97, 20834825), (239, 8455975), (275, 7349011), (317, 6375325), (485, 4166965), (1067, 1894075), (1195, 1691195), (1585, 1275065), (2425, 833393), (2629, 768725), (3487, 579575), (5335, 378815), (5975, 338239), (7925, 255013), (13145, 153745), (17435, 115915), (23183, 87175), (26675, 75763), (30749, 65725)]