18664620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23929}}^1$

素因数の和:23954

約数の個数: 48

約数和(自身を含む): 56283360

約数和(自身を除く): 37618740

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 23929, 47858, 71787, 95716, 119645, 143574, 239290, 287148, 311077, 358935, 478580, 622154, 717870, 933231, 1244308, 1435740, 1555385, 1866462, 3110770, 3732924, 4666155, 6221540, 9332310, 18664620]

約数ペア:

[(1, 18664620), (2, 9332310), (3, 6221540), (4, 4666155), (5, 3732924), (6, 3110770), (10, 1866462), (12, 1555385), (13, 1435740), (15, 1244308), (20, 933231), (26, 717870), (30, 622154), (39, 478580), (52, 358935), (60, 311077), (65, 287148), (78, 239290), (130, 143574), (156, 119645), (195, 95716), (260, 71787), (390, 47858), (780, 23929)]