205353880

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{301991}}^1$

素因数の和:302019

約数の個数: 32

約数和(自身を含む): 489227040

約数和(自身を除く): 283873160

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 301991, 603982, 1207964, 1509955, 2415928, 3019910, 5133847, 6039820, 10267694, 12079640, 20535388, 25669235, 41070776, 51338470, 102676940, 205353880]

約数ペア:

[(1, 205353880), (2, 102676940), (4, 51338470), (5, 41070776), (8, 25669235), (10, 20535388), (17, 12079640), (20, 10267694), (34, 6039820), (40, 5133847), (68, 3019910), (85, 2415928), (136, 1509955), (170, 1207964), (340, 603982), (680, 301991)]