87758420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{258113}}^1$

素因数の和:258139

約数の個数: 24

約数和(自身を含む): 195134184

約数和(自身を除く): 107375764

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 258113, 516226, 1032452, 1290565, 2581130, 4387921, 5162260, 8775842, 17551684, 21939605, 43879210, 87758420]

約数ペア:

[(1, 87758420), (2, 43879210), (4, 21939605), (5, 17551684), (10, 8775842), (17, 5162260), (20, 4387921), (34, 2581130), (68, 1290565), (85, 1032452), (170, 516226), (340, 258113)]