20055915

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1307}}^1$

素因数の和:1360

約数の個数: 48

約数和(自身を含む): 39177216

約数和(自身を除く): 19121301

約数列:

[1, 3, 5, 9, 11, 15, 31, 33, 45, 55, 93, 99, 155, 165, 279, 341, 465, 495, 1023, 1307, 1395, 1705, 3069, 3921, 5115, 6535, 11763, 14377, 15345, 19605, 40517, 43131, 58815, 71885, 121551, 129393, 202585, 215655, 364653, 445687, 607755, 646965, 1337061, 1823265, 2228435, 4011183, 6685305, 20055915]

約数ペア:

[(1, 20055915), (3, 6685305), (5, 4011183), (9, 2228435), (11, 1823265), (15, 1337061), (31, 646965), (33, 607755), (45, 445687), (55, 364653), (93, 215655), (99, 202585), (155, 129393), (165, 121551), (279, 71885), (341, 58815), (465, 43131), (495, 40517), (1023, 19605), (1307, 15345), (1395, 14377), (1705, 11763), (3069, 6535), (3921, 5115)]