17897980

素因数分解:

$2^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{4013}}^1$

素因数の和:4245

約数の個数: 24

約数和(自身を含む): 37763712

約数和(自身を除く): 19865732

約数列:

[1, 2, 4, 5, 10, 20, 223, 446, 892, 1115, 2230, 4013, 4460, 8026, 16052, 20065, 40130, 80260, 894899, 1789798, 3579596, 4474495, 8948990, 17897980]

約数ペア:

[(1, 17897980), (2, 8948990), (4, 4474495), (5, 3579596), (10, 1789798), (20, 894899), (223, 80260), (446, 40130), (892, 20065), (1115, 16052), (2230, 8026), (4013, 4460)]