87978780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{569}}^1\times {\mathrm{859}}^1$

素因数の和:1443

約数の個数: 72

約数和(自身を含む): 267649200

約数和(自身を除く): 179670420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 569, 859, 1138, 1707, 1718, 2276, 2577, 2845, 3414, 3436, 4295, 5121, 5154, 5690, 6828, 7731, 8535, 8590, 10242, 10308, 11380, 12885, 15462, 17070, 17180, 20484, 25605, 25770, 30924, 34140, 38655, 51210, 51540, 77310, 102420, 154620, 488771, 977542, 1466313, 1955084, 2443855, 2932626, 4398939, 4887710, 5865252, 7331565, 8797878, 9775420, 14663130, 17595756, 21994695, 29326260, 43989390, 87978780]

約数ペア:

[(1, 87978780), (2, 43989390), (3, 29326260), (4, 21994695), (5, 17595756), (6, 14663130), (9, 9775420), (10, 8797878), (12, 7331565), (15, 5865252), (18, 4887710), (20, 4398939), (30, 2932626), (36, 2443855), (45, 1955084), (60, 1466313), (90, 977542), (180, 488771), (569, 154620), (859, 102420), (1138, 77310), (1707, 51540), (1718, 51210), (2276, 38655), (2577, 34140), (2845, 30924), (3414, 25770), (3436, 25605), (4295, 20484), (5121, 17180), (5154, 17070), (5690, 15462), (6828, 12885), (7731, 11380), (8535, 10308), (8590, 10242)]