19873740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{7703}}^1$

素因数の和:7758

約数の個数: 48

約数和(自身を含む): 56947968

約数和(自身を除く): 37074228

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 86, 129, 172, 215, 258, 430, 516, 645, 860, 1290, 2580, 7703, 15406, 23109, 30812, 38515, 46218, 77030, 92436, 115545, 154060, 231090, 331229, 462180, 662458, 993687, 1324916, 1656145, 1987374, 3312290, 3974748, 4968435, 6624580, 9936870, 19873740]

約数ペア:

[(1, 19873740), (2, 9936870), (3, 6624580), (4, 4968435), (5, 3974748), (6, 3312290), (10, 1987374), (12, 1656145), (15, 1324916), (20, 993687), (30, 662458), (43, 462180), (60, 331229), (86, 231090), (129, 154060), (172, 115545), (215, 92436), (258, 77030), (430, 46218), (516, 38515), (645, 30812), (860, 23109), (1290, 15406), (2580, 7703)]