207958280

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{305821}}^1$

素因数の和:305849

約数の個数: 32

約数和(自身を含む): 495431640

約数和(自身を除く): 287473360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 305821, 611642, 1223284, 1529105, 2446568, 3058210, 5198957, 6116420, 10397914, 12232840, 20795828, 25994785, 41591656, 51989570, 103979140, 207958280]

約数ペア:

[(1, 207958280), (2, 103979140), (4, 51989570), (5, 41591656), (8, 25994785), (10, 20795828), (17, 12232840), (20, 10397914), (34, 6116420), (40, 5198957), (68, 3058210), (85, 2446568), (136, 1529105), (170, 1223284), (340, 611642), (680, 305821)]