391290680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{28687}}^1$

素因数の和:28740

約数の個数: 64

約数和(自身を含む): 991457280

約数和(自身を除く): 600166600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 124, 155, 220, 248, 310, 341, 440, 620, 682, 1240, 1364, 1705, 2728, 3410, 6820, 13640, 28687, 57374, 114748, 143435, 229496, 286870, 315557, 573740, 631114, 889297, 1147480, 1262228, 1577785, 1778594, 2524456, 3155570, 3557188, 4446485, 6311140, 7114376, 8892970, 9782267, 12622280, 17785940, 19564534, 35571880, 39129068, 48911335, 78258136, 97822670, 195645340, 391290680]

約数ペア:

[(1, 391290680), (2, 195645340), (4, 97822670), (5, 78258136), (8, 48911335), (10, 39129068), (11, 35571880), (20, 19564534), (22, 17785940), (31, 12622280), (40, 9782267), (44, 8892970), (55, 7114376), (62, 6311140), (88, 4446485), (110, 3557188), (124, 3155570), (155, 2524456), (220, 1778594), (248, 1577785), (310, 1262228), (341, 1147480), (440, 889297), (620, 631114), (682, 573740), (1240, 315557), (1364, 286870), (1705, 229496), (2728, 143435), (3410, 114748), (6820, 57374), (13640, 28687)]