64699864

素因数分解:

$2^3\times {\mathrm{19}}^2\times {\mathrm{43}}^1\times {\mathrm{521}}^1$

素因数の和:608

約数の個数: 48

約数和(自身を含む): 131262120

約数和(自身を除く): 66562256

約数列:

[1, 2, 4, 8, 19, 38, 43, 76, 86, 152, 172, 344, 361, 521, 722, 817, 1042, 1444, 1634, 2084, 2888, 3268, 4168, 6536, 9899, 15523, 19798, 22403, 31046, 39596, 44806, 62092, 79192, 89612, 124184, 179224, 188081, 376162, 425657, 752324, 851314, 1504648, 1702628, 3405256, 8087483, 16174966, 32349932, 64699864]

約数ペア:

[(1, 64699864), (2, 32349932), (4, 16174966), (8, 8087483), (19, 3405256), (38, 1702628), (43, 1504648), (76, 851314), (86, 752324), (152, 425657), (172, 376162), (344, 188081), (361, 179224), (521, 124184), (722, 89612), (817, 79192), (1042, 62092), (1444, 44806), (1634, 39596), (2084, 31046), (2888, 22403), (3268, 19798), (4168, 15523), (6536, 9899)]