20199872290

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{659}}^1\times {\mathrm{235787}}^1$

素因数の和:236466

約数の個数: 32

約数和(自身を含む): 39216260160

約数和(自身を除く): 19016387870

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 659, 1318, 3295, 6590, 8567, 17134, 42835, 85670, 235787, 471574, 1178935, 2357870, 3065231, 6130462, 15326155, 30652310, 155383633, 310767266, 776918165, 1553836330, 2019987229, 4039974458, 10099936145, 20199872290]

約数ペア:

[(1, 20199872290), (2, 10099936145), (5, 4039974458), (10, 2019987229), (13, 1553836330), (26, 776918165), (65, 310767266), (130, 155383633), (659, 30652310), (1318, 15326155), (3295, 6130462), (6590, 3065231), (8567, 2357870), (17134, 1178935), (42835, 471574), (85670, 235787)]