2687080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1$

素因数の和:250

約数の個数: 64

約数和(自身を含む): 6842880

約数和(自身を除く): 4155800

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 124, 155, 197, 220, 248, 310, 341, 394, 440, 620, 682, 788, 985, 1240, 1364, 1576, 1705, 1970, 2167, 2728, 3410, 3940, 4334, 6107, 6820, 7880, 8668, 10835, 12214, 13640, 17336, 21670, 24428, 30535, 43340, 48856, 61070, 67177, 86680, 122140, 134354, 244280, 268708, 335885, 537416, 671770, 1343540, 2687080]

約数ペア:

[(1, 2687080), (2, 1343540), (4, 671770), (5, 537416), (8, 335885), (10, 268708), (11, 244280), (20, 134354), (22, 122140), (31, 86680), (40, 67177), (44, 61070), (55, 48856), (62, 43340), (88, 30535), (110, 24428), (124, 21670), (155, 17336), (197, 13640), (220, 12214), (248, 10835), (310, 8668), (341, 7880), (394, 6820), (440, 6107), (620, 4334), (682, 3940), (788, 3410), (985, 2728), (1240, 2167), (1364, 1970), (1576, 1705)]