5521720

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1$

素因数の和:176

約数の個数: 64

約数和(自身を含む): 13213440

約数和(自身を除く): 7691720

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 61, 62, 73, 122, 124, 146, 155, 244, 248, 292, 305, 310, 365, 488, 584, 610, 620, 730, 1220, 1240, 1460, 1891, 2263, 2440, 2920, 3782, 4453, 4526, 7564, 8906, 9052, 9455, 11315, 15128, 17812, 18104, 18910, 22265, 22630, 35624, 37820, 44530, 45260, 75640, 89060, 90520, 138043, 178120, 276086, 552172, 690215, 1104344, 1380430, 2760860, 5521720]

約数ペア:

[(1, 5521720), (2, 2760860), (4, 1380430), (5, 1104344), (8, 690215), (10, 552172), (20, 276086), (31, 178120), (40, 138043), (61, 90520), (62, 89060), (73, 75640), (122, 45260), (124, 44530), (146, 37820), (155, 35624), (244, 22630), (248, 22265), (292, 18910), (305, 18104), (310, 17812), (365, 15128), (488, 11315), (584, 9455), (610, 9052), (620, 8906), (730, 7564), (1220, 4526), (1240, 4453), (1460, 3782), (1891, 2920), (2263, 2440)]