8371640

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1$

素因数の和:192

約数の個数: 64

約数和(自身を含む): 19820160

約数和(自身を除く): 11448520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 61, 73, 94, 122, 146, 188, 235, 244, 292, 305, 365, 376, 470, 488, 584, 610, 730, 940, 1220, 1460, 1880, 2440, 2867, 2920, 3431, 4453, 5734, 6862, 8906, 11468, 13724, 14335, 17155, 17812, 22265, 22936, 27448, 28670, 34310, 35624, 44530, 57340, 68620, 89060, 114680, 137240, 178120, 209291, 418582, 837164, 1046455, 1674328, 2092910, 4185820, 8371640]

約数ペア:

[(1, 8371640), (2, 4185820), (4, 2092910), (5, 1674328), (8, 1046455), (10, 837164), (20, 418582), (40, 209291), (47, 178120), (61, 137240), (73, 114680), (94, 89060), (122, 68620), (146, 57340), (188, 44530), (235, 35624), (244, 34310), (292, 28670), (305, 27448), (365, 22936), (376, 22265), (470, 17812), (488, 17155), (584, 14335), (610, 13724), (730, 11468), (940, 8906), (1220, 6862), (1460, 5734), (1880, 4453), (2440, 3431), (2867, 2920)]