18705870

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{2389}}^1$

素因数の和:2434

約数の個数: 64

約数和(自身を含む): 51624000

約数和(自身を除く): 32918130

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 29, 30, 45, 54, 58, 87, 90, 135, 145, 174, 261, 270, 290, 435, 522, 783, 870, 1305, 1566, 2389, 2610, 3915, 4778, 7167, 7830, 11945, 14334, 21501, 23890, 35835, 43002, 64503, 69281, 71670, 107505, 129006, 138562, 207843, 215010, 322515, 346405, 415686, 623529, 645030, 692810, 1039215, 1247058, 1870587, 2078430, 3117645, 3741174, 6235290, 9352935, 18705870]

約数ペア:

[(1, 18705870), (2, 9352935), (3, 6235290), (5, 3741174), (6, 3117645), (9, 2078430), (10, 1870587), (15, 1247058), (18, 1039215), (27, 692810), (29, 645030), (30, 623529), (45, 415686), (54, 346405), (58, 322515), (87, 215010), (90, 207843), (135, 138562), (145, 129006), (174, 107505), (261, 71670), (270, 69281), (290, 64503), (435, 43002), (522, 35835), (783, 23890), (870, 21501), (1305, 14334), (1566, 11945), (2389, 7830), (2610, 7167), (3915, 4778)]