1640821888

素因数分解:

$2^7\times {\mathrm{47}}^1\times {\mathrm{107}}^1\times {\mathrm{2549}}^1$

素因数の和:2717

約数の個数: 64

約数和(自身を含む): 3370896000

約数和(自身を除く): 1730074112

約数列:

[1, 2, 4, 8, 16, 32, 47, 64, 94, 107, 128, 188, 214, 376, 428, 752, 856, 1504, 1712, 2549, 3008, 3424, 5029, 5098, 6016, 6848, 10058, 10196, 13696, 20116, 20392, 40232, 40784, 80464, 81568, 119803, 160928, 163136, 239606, 272743, 321856, 326272, 479212, 545486, 643712, 958424, 1090972, 1916848, 2181944, 3833696, 4363888, 7667392, 8727776, 12818921, 15334784, 17455552, 25637842, 34911104, 51275684, 102551368, 205102736, 410205472, 820410944, 1640821888]

約数ペア:

[(1, 1640821888), (2, 820410944), (4, 410205472), (8, 205102736), (16, 102551368), (32, 51275684), (47, 34911104), (64, 25637842), (94, 17455552), (107, 15334784), (128, 12818921), (188, 8727776), (214, 7667392), (376, 4363888), (428, 3833696), (752, 2181944), (856, 1916848), (1504, 1090972), (1712, 958424), (2549, 643712), (3008, 545486), (3424, 479212), (5029, 326272), (5098, 321856), (6016, 272743), (6848, 239606), (10058, 163136), (10196, 160928), (13696, 119803), (20116, 81568), (20392, 80464), (40232, 40784)]