19984870

素因数分解:

$2^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1\times {\mathrm{421}}^1$

素因数の和:576

約数の個数: 32

約数和(自身を含む): 37190016

約数和(自身を除く): 17205146

約数列:

[1, 2, 5, 10, 47, 94, 101, 202, 235, 421, 470, 505, 842, 1010, 2105, 4210, 4747, 9494, 19787, 23735, 39574, 42521, 47470, 85042, 98935, 197870, 212605, 425210, 1998487, 3996974, 9992435, 19984870]

約数ペア:

[(1, 19984870), (2, 9992435), (5, 3996974), (10, 1998487), (47, 425210), (94, 212605), (101, 197870), (202, 98935), (235, 85042), (421, 47470), (470, 42521), (505, 39574), (842, 23735), (1010, 19787), (2105, 9494), (4210, 4747)]