18785820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{4289}}^1$

素因数の和:4374

約数の個数: 48

約数和(自身を含む): 53333280

約数和(自身を除く): 34547460

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 73, 146, 219, 292, 365, 438, 730, 876, 1095, 1460, 2190, 4289, 4380, 8578, 12867, 17156, 21445, 25734, 42890, 51468, 64335, 85780, 128670, 257340, 313097, 626194, 939291, 1252388, 1565485, 1878582, 3130970, 3757164, 4696455, 6261940, 9392910, 18785820]

約数ペア:

[(1, 18785820), (2, 9392910), (3, 6261940), (4, 4696455), (5, 3757164), (6, 3130970), (10, 1878582), (12, 1565485), (15, 1252388), (20, 939291), (30, 626194), (60, 313097), (73, 257340), (146, 128670), (219, 85780), (292, 64335), (365, 51468), (438, 42890), (730, 25734), (876, 21445), (1095, 17156), (1460, 12867), (2190, 8578), (4289, 4380)]