77442440

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{47221}}^1$

素因数の和:47273

約数の個数: 32

約数和(自身を含む): 178499160

約数和(自身を除く): 101056720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 47221, 94442, 188884, 236105, 377768, 472210, 944420, 1888840, 1936061, 3872122, 7744244, 9680305, 15488488, 19360610, 38721220, 77442440]

約数ペア:

[(1, 77442440), (2, 38721220), (4, 19360610), (5, 15488488), (8, 9680305), (10, 7744244), (20, 3872122), (40, 1936061), (41, 1888840), (82, 944420), (164, 472210), (205, 377768), (328, 236105), (410, 188884), (820, 94442), (1640, 47221)]