19889350

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{827}}^1$

素因数の和:889

約数の個数: 48

約数和(自身を含む): 40966128

約数和(自身を除く): 21076778

約数列:

[1, 2, 5, 10, 13, 25, 26, 37, 50, 65, 74, 130, 185, 325, 370, 481, 650, 827, 925, 962, 1654, 1850, 2405, 4135, 4810, 8270, 10751, 12025, 20675, 21502, 24050, 30599, 41350, 53755, 61198, 107510, 152995, 268775, 305990, 397787, 537550, 764975, 795574, 1529950, 1988935, 3977870, 9944675, 19889350]

約数ペア:

[(1, 19889350), (2, 9944675), (5, 3977870), (10, 1988935), (13, 1529950), (25, 795574), (26, 764975), (37, 537550), (50, 397787), (65, 305990), (74, 268775), (130, 152995), (185, 107510), (325, 61198), (370, 53755), (481, 41350), (650, 30599), (827, 24050), (925, 21502), (962, 20675), (1654, 12025), (1850, 10751), (2405, 8270), (4135, 4810)]