123415760

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{118669}}^1$

素因数の和:118695

約数の個数: 40

約数和(自身を含む): 309016680

約数和(自身を除く): 185600920

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 118669, 237338, 474676, 593345, 949352, 1186690, 1542697, 1898704, 2373380, 3085394, 4746760, 6170788, 7713485, 9493520, 12341576, 15426970, 24683152, 30853940, 61707880, 123415760]

約数ペア:

[(1, 123415760), (2, 61707880), (4, 30853940), (5, 24683152), (8, 15426970), (10, 12341576), (13, 9493520), (16, 7713485), (20, 6170788), (26, 4746760), (40, 3085394), (52, 2373380), (65, 1898704), (80, 1542697), (104, 1186690), (130, 949352), (208, 593345), (260, 474676), (520, 237338), (1040, 118669)]