20545830

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{5309}}^1$

素因数の和:5365

約数の個数: 48

約数和(自身を含む): 54671760

約数和(自身を除く): 34125930

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 43, 45, 86, 90, 129, 215, 258, 387, 430, 645, 774, 1290, 1935, 3870, 5309, 10618, 15927, 26545, 31854, 47781, 53090, 79635, 95562, 159270, 228287, 238905, 456574, 477810, 684861, 1141435, 1369722, 2054583, 2282870, 3424305, 4109166, 6848610, 10272915, 20545830]

約数ペア:

[(1, 20545830), (2, 10272915), (3, 6848610), (5, 4109166), (6, 3424305), (9, 2282870), (10, 2054583), (15, 1369722), (18, 1141435), (30, 684861), (43, 477810), (45, 456574), (86, 238905), (90, 228287), (129, 159270), (215, 95562), (258, 79635), (387, 53090), (430, 47781), (645, 31854), (774, 26545), (1290, 15927), (1935, 10618), (3870, 5309)]