20980620

素因数分解:

$2^2\times 3^6\times 5^1\times {\mathrm{1439}}^1$

素因数の和:1466

約数の個数: 84

約数和(自身を含む): 66104640

約数和(自身を除く): 45124020

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, 243, 270, 324, 405, 486, 540, 729, 810, 972, 1215, 1439, 1458, 1620, 2430, 2878, 2916, 3645, 4317, 4860, 5756, 7195, 7290, 8634, 12951, 14390, 14580, 17268, 21585, 25902, 28780, 38853, 43170, 51804, 64755, 77706, 86340, 116559, 129510, 155412, 194265, 233118, 259020, 349677, 388530, 466236, 582795, 699354, 777060, 1049031, 1165590, 1398708, 1748385, 2098062, 2331180, 3496770, 4196124, 5245155, 6993540, 10490310, 20980620]

約数ペア:

[(1, 20980620), (2, 10490310), (3, 6993540), (4, 5245155), (5, 4196124), (6, 3496770), (9, 2331180), (10, 2098062), (12, 1748385), (15, 1398708), (18, 1165590), (20, 1049031), (27, 777060), (30, 699354), (36, 582795), (45, 466236), (54, 388530), (60, 349677), (81, 259020), (90, 233118), (108, 194265), (135, 155412), (162, 129510), (180, 116559), (243, 86340), (270, 77706), (324, 64755), (405, 51804), (486, 43170), (540, 38853), (729, 28780), (810, 25902), (972, 21585), (1215, 17268), (1439, 14580), (1458, 14390), (1620, 12951), (2430, 8634), (2878, 7290), (2916, 7195), (3645, 5756), (4317, 4860)]