77211080

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{877}}^1$

素因数の和:990

約数の個数: 64

約数和(自身を含む): 182062080

約数和(自身を除く): 104851000

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 71, 124, 142, 155, 248, 284, 310, 355, 568, 620, 710, 877, 1240, 1420, 1754, 2201, 2840, 3508, 4385, 4402, 7016, 8770, 8804, 11005, 17540, 17608, 22010, 27187, 35080, 44020, 54374, 62267, 88040, 108748, 124534, 135935, 217496, 249068, 271870, 311335, 498136, 543740, 622670, 1087480, 1245340, 1930277, 2490680, 3860554, 7721108, 9651385, 15442216, 19302770, 38605540, 77211080]

約数ペア:

[(1, 77211080), (2, 38605540), (4, 19302770), (5, 15442216), (8, 9651385), (10, 7721108), (20, 3860554), (31, 2490680), (40, 1930277), (62, 1245340), (71, 1087480), (124, 622670), (142, 543740), (155, 498136), (248, 311335), (284, 271870), (310, 249068), (355, 217496), (568, 135935), (620, 124534), (710, 108748), (877, 88040), (1240, 62267), (1420, 54374), (1754, 44020), (2201, 35080), (2840, 27187), (3508, 22010), (4385, 17608), (4402, 17540), (7016, 11005), (8770, 8804)]