19664880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{81937}}^1$

素因数の和:81953

約数の個数: 40

約数和(自身を含む): 60961872

約数和(自身を除く): 41296992

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 81937, 163874, 245811, 327748, 409685, 491622, 655496, 819370, 983244, 1229055, 1310992, 1638740, 1966488, 2458110, 3277480, 3932976, 4916220, 6554960, 9832440, 19664880]

約数ペア:

[(1, 19664880), (2, 9832440), (3, 6554960), (4, 4916220), (5, 3932976), (6, 3277480), (8, 2458110), (10, 1966488), (12, 1638740), (15, 1310992), (16, 1229055), (20, 983244), (24, 819370), (30, 655496), (40, 491622), (48, 409685), (60, 327748), (80, 245811), (120, 163874), (240, 81937)]