1988902545

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{67409}}^1$

素因数の和:67705

約数の個数: 32

約数和(自身を含む): 3649847040

約数和(自身を除く): 1660944495

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 281, 843, 1405, 1967, 4215, 5901, 9835, 29505, 67409, 202227, 337045, 471863, 1011135, 1415589, 2359315, 7077945, 18941929, 56825787, 94709645, 132593503, 284128935, 397780509, 662967515, 1988902545]

約数ペア:

[(1, 1988902545), (3, 662967515), (5, 397780509), (7, 284128935), (15, 132593503), (21, 94709645), (35, 56825787), (105, 18941929), (281, 7077945), (843, 2359315), (1405, 1415589), (1967, 1011135), (4215, 471863), (5901, 337045), (9835, 202227), (29505, 67409)]