20035980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1409}}^1$

素因数の和:1503

約数の個数: 72

約数和(自身を含む): 61588800

約数和(自身を除く): 41552820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 79, 90, 158, 180, 237, 316, 395, 474, 711, 790, 948, 1185, 1409, 1422, 1580, 2370, 2818, 2844, 3555, 4227, 4740, 5636, 7045, 7110, 8454, 12681, 14090, 14220, 16908, 21135, 25362, 28180, 42270, 50724, 63405, 84540, 111311, 126810, 222622, 253620, 333933, 445244, 556555, 667866, 1001799, 1113110, 1335732, 1669665, 2003598, 2226220, 3339330, 4007196, 5008995, 6678660, 10017990, 20035980]

約数ペア:

[(1, 20035980), (2, 10017990), (3, 6678660), (4, 5008995), (5, 4007196), (6, 3339330), (9, 2226220), (10, 2003598), (12, 1669665), (15, 1335732), (18, 1113110), (20, 1001799), (30, 667866), (36, 556555), (45, 445244), (60, 333933), (79, 253620), (90, 222622), (158, 126810), (180, 111311), (237, 84540), (316, 63405), (395, 50724), (474, 42270), (711, 28180), (790, 25362), (948, 21135), (1185, 16908), (1409, 14220), (1422, 14090), (1580, 12681), (2370, 8454), (2818, 7110), (2844, 7045), (3555, 5636), (4227, 4740)]