648458640

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{821}}^1\times {\mathrm{1097}}^1$

素因数の和:1937

約数の個数: 120

約数和(自身を含む): 2182380408

約数和(自身を除く): 1533921768

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 821, 1097, 1642, 2194, 2463, 3284, 3291, 4105, 4388, 4926, 5485, 6568, 6582, 7389, 8210, 8776, 9852, 9873, 10970, 12315, 13136, 13164, 14778, 16420, 16455, 17552, 19704, 19746, 21940, 24630, 26328, 29556, 32840, 32910, 36945, 39408, 39492, 43880, 49260, 49365, 52656, 59112, 65680, 65820, 73890, 78984, 87760, 98520, 98730, 118224, 131640, 147780, 157968, 197040, 197460, 263280, 295560, 394920, 591120, 789840, 900637, 1801274, 2701911, 3602548, 4503185, 5403822, 7205096, 8105733, 9006370, 10807644, 13509555, 14410192, 16211466, 18012740, 21615288, 27019110, 32422932, 36025480, 40528665, 43230576, 54038220, 64845864, 72050960, 81057330, 108076440, 129691728, 162114660, 216152880, 324229320, 648458640]

約数ペア:

[(1, 648458640), (2, 324229320), (3, 216152880), (4, 162114660), (5, 129691728), (6, 108076440), (8, 81057330), (9, 72050960), (10, 64845864), (12, 54038220), (15, 43230576), (16, 40528665), (18, 36025480), (20, 32422932), (24, 27019110), (30, 21615288), (36, 18012740), (40, 16211466), (45, 14410192), (48, 13509555), (60, 10807644), (72, 9006370), (80, 8105733), (90, 7205096), (120, 5403822), (144, 4503185), (180, 3602548), (240, 2701911), (360, 1801274), (720, 900637), (821, 789840), (1097, 591120), (1642, 394920), (2194, 295560), (2463, 263280), (3284, 197460), (3291, 197040), (4105, 157968), (4388, 147780), (4926, 131640), (5485, 118224), (6568, 98730), (6582, 98520), (7389, 87760), (8210, 78984), (8776, 73890), (9852, 65820), (9873, 65680), (10970, 59112), (12315, 52656), (13136, 49365), (13164, 49260), (14778, 43880), (16420, 39492), (16455, 39408), (17552, 36945), (19704, 32910), (19746, 32840), (21940, 29556), (24630, 26328)]