20193661315

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1\times {\mathrm{199}}^1\times {\mathrm{1451}}^1$

素因数の和:1923

約数の個数: 32

約数和(自身を含む): 24839654400

約数和(自身を除く): 4645993085

約数列:

[1, 5, 71, 197, 199, 355, 985, 995, 1451, 7255, 13987, 14129, 39203, 69935, 70645, 103021, 196015, 285847, 288749, 515105, 1429235, 1443745, 2783413, 13917065, 20295137, 20501179, 56883553, 101475685, 102505895, 284417765, 4038732263, 20193661315]

約数ペア:

[(1, 20193661315), (5, 4038732263), (71, 284417765), (197, 102505895), (199, 101475685), (355, 56883553), (985, 20501179), (995, 20295137), (1451, 13917065), (7255, 2783413), (13987, 1443745), (14129, 1429235), (39203, 515105), (69935, 288749), (70645, 285847), (103021, 196015)]