20652180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{4357}}^1$

素因数の和:4448

約数の個数: 48

約数和(自身を含む): 58571520

約数和(自身を除く): 37919340

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 79, 158, 237, 316, 395, 474, 790, 948, 1185, 1580, 2370, 4357, 4740, 8714, 13071, 17428, 21785, 26142, 43570, 52284, 65355, 87140, 130710, 261420, 344203, 688406, 1032609, 1376812, 1721015, 2065218, 3442030, 4130436, 5163045, 6884060, 10326090, 20652180]

約数ペア:

[(1, 20652180), (2, 10326090), (3, 6884060), (4, 5163045), (5, 4130436), (6, 3442030), (10, 2065218), (12, 1721015), (15, 1376812), (20, 1032609), (30, 688406), (60, 344203), (79, 261420), (158, 130710), (237, 87140), (316, 65355), (395, 52284), (474, 43570), (790, 26142), (948, 21785), (1185, 17428), (1580, 13071), (2370, 8714), (4357, 4740)]