68638520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{193}}^1\times {\mathrm{523}}^1$

素因数の和:744

約数の個数: 64

約数和(自身を含む): 164682720

約数和(自身を除く): 96044200

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 193, 340, 386, 523, 680, 772, 965, 1046, 1544, 1930, 2092, 2615, 3281, 3860, 4184, 5230, 6562, 7720, 8891, 10460, 13124, 16405, 17782, 20920, 26248, 32810, 35564, 44455, 65620, 71128, 88910, 100939, 131240, 177820, 201878, 355640, 403756, 504695, 807512, 1009390, 1715963, 2018780, 3431926, 4037560, 6863852, 8579815, 13727704, 17159630, 34319260, 68638520]

約数ペア:

[(1, 68638520), (2, 34319260), (4, 17159630), (5, 13727704), (8, 8579815), (10, 6863852), (17, 4037560), (20, 3431926), (34, 2018780), (40, 1715963), (68, 1009390), (85, 807512), (136, 504695), (170, 403756), (193, 355640), (340, 201878), (386, 177820), (523, 131240), (680, 100939), (772, 88910), (965, 71128), (1046, 65620), (1544, 44455), (1930, 35564), (2092, 32810), (2615, 26248), (3281, 20920), (3860, 17782), (4184, 16405), (5230, 13124), (6562, 10460), (7720, 8891)]