2638980

素因数分解:

$2^2\times 3^6\times 5^1\times {\mathrm{181}}^1$

素因数の和:208

約数の個数: 84

約数和(自身を含む): 8354892

約数和(自身を除く): 5715912

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 181, 243, 270, 324, 362, 405, 486, 540, 543, 724, 729, 810, 905, 972, 1086, 1215, 1458, 1620, 1629, 1810, 2172, 2430, 2715, 2916, 3258, 3620, 3645, 4860, 4887, 5430, 6516, 7290, 8145, 9774, 10860, 14580, 14661, 16290, 19548, 24435, 29322, 32580, 43983, 48870, 58644, 73305, 87966, 97740, 131949, 146610, 175932, 219915, 263898, 293220, 439830, 527796, 659745, 879660, 1319490, 2638980]

約数ペア:

[(1, 2638980), (2, 1319490), (3, 879660), (4, 659745), (5, 527796), (6, 439830), (9, 293220), (10, 263898), (12, 219915), (15, 175932), (18, 146610), (20, 131949), (27, 97740), (30, 87966), (36, 73305), (45, 58644), (54, 48870), (60, 43983), (81, 32580), (90, 29322), (108, 24435), (135, 19548), (162, 16290), (180, 14661), (181, 14580), (243, 10860), (270, 9774), (324, 8145), (362, 7290), (405, 6516), (486, 5430), (540, 4887), (543, 4860), (724, 3645), (729, 3620), (810, 3258), (905, 2916), (972, 2715), (1086, 2430), (1215, 2172), (1458, 1810), (1620, 1629)]