19408440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{197}}^1\times {\mathrm{821}}^1$

素因数の和:1032

約数の個数: 64

約数和(自身を含む): 58592160

約数和(自身を除く): 39183720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 197, 394, 591, 788, 821, 985, 1182, 1576, 1642, 1970, 2364, 2463, 2955, 3284, 3940, 4105, 4728, 4926, 5910, 6568, 7880, 8210, 9852, 11820, 12315, 16420, 19704, 23640, 24630, 32840, 49260, 98520, 161737, 323474, 485211, 646948, 808685, 970422, 1293896, 1617370, 1940844, 2426055, 3234740, 3881688, 4852110, 6469480, 9704220, 19408440]

約数ペア:

[(1, 19408440), (2, 9704220), (3, 6469480), (4, 4852110), (5, 3881688), (6, 3234740), (8, 2426055), (10, 1940844), (12, 1617370), (15, 1293896), (20, 970422), (24, 808685), (30, 646948), (40, 485211), (60, 323474), (120, 161737), (197, 98520), (394, 49260), (591, 32840), (788, 24630), (821, 23640), (985, 19704), (1182, 16420), (1576, 12315), (1642, 11820), (1970, 9852), (2364, 8210), (2463, 7880), (2955, 6568), (3284, 5910), (3940, 4926), (4105, 4728)]