20581007870

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{593}}^1\times {\mathrm{80713}}^1$

素因数の和:81356

約数の個数: 32

約数和(自身を含む): 37971739872

約数和(自身を除く): 17390732002

約数列:

[1, 2, 5, 10, 43, 86, 215, 430, 593, 1186, 2965, 5930, 25499, 50998, 80713, 127495, 161426, 254990, 403565, 807130, 3470659, 6941318, 17353295, 34706590, 47862809, 95725618, 239314045, 478628090, 2058100787, 4116201574, 10290503935, 20581007870]

約数ペア:

[(1, 20581007870), (2, 10290503935), (5, 4116201574), (10, 2058100787), (43, 478628090), (86, 239314045), (215, 95725618), (430, 47862809), (593, 34706590), (1186, 17353295), (2965, 6941318), (5930, 3470659), (25499, 807130), (50998, 403565), (80713, 254990), (127495, 161426)]