306913620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{393479}}^1$

素因数の和:393504

約数の個数: 48

約数和(自身を含む): 925464960

約数和(自身を除く): 618551340

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, 393479, 786958, 1180437, 1573916, 1967395, 2360874, 3934790, 4721748, 5115227, 5902185, 7869580, 10230454, 11804370, 15345681, 20460908, 23608740, 25576135, 30691362, 51152270, 61382724, 76728405, 102304540, 153456810, 306913620]

約数ペア:

[(1, 306913620), (2, 153456810), (3, 102304540), (4, 76728405), (5, 61382724), (6, 51152270), (10, 30691362), (12, 25576135), (13, 23608740), (15, 20460908), (20, 15345681), (26, 11804370), (30, 10230454), (39, 7869580), (52, 5902185), (60, 5115227), (65, 4721748), (78, 3934790), (130, 2360874), (156, 1967395), (195, 1573916), (260, 1180437), (390, 786958), (780, 393479)]