816634240

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41161}}^1$

素因数の和:41211

約数の個数: 64

約数和(自身を含む): 2015291520

約数和(自身を除く): 1198657280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1984, 2480, 3968, 4960, 9920, 19840, 41161, 82322, 164644, 205805, 329288, 411610, 658576, 823220, 1275991, 1317152, 1646440, 2551982, 2634304, 3292880, 5103964, 5268608, 6379955, 6585760, 10207928, 12759910, 13171520, 20415856, 25519820, 26343040, 40831712, 51039640, 81663424, 102079280, 163326848, 204158560, 408317120, 816634240]

約数ペア:

[(1, 816634240), (2, 408317120), (4, 204158560), (5, 163326848), (8, 102079280), (10, 81663424), (16, 51039640), (20, 40831712), (31, 26343040), (32, 25519820), (40, 20415856), (62, 13171520), (64, 12759910), (80, 10207928), (124, 6585760), (128, 6379955), (155, 5268608), (160, 5103964), (248, 3292880), (310, 2634304), (320, 2551982), (496, 1646440), (620, 1317152), (640, 1275991), (992, 823220), (1240, 658576), (1984, 411610), (2480, 329288), (3968, 205805), (4960, 164644), (9920, 82322), (19840, 41161)]