1977389205

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{239}}^1\times {\mathrm{1223}}^1$

素因数の和:1522

約数の個数: 64

約数和(自身を含む): 3553320960

約数和(自身を除く): 1575931755

約数列:

[1, 3, 5, 11, 15, 33, 41, 55, 123, 165, 205, 239, 451, 615, 717, 1195, 1223, 1353, 2255, 2629, 3585, 3669, 6115, 6765, 7887, 9799, 13145, 13453, 18345, 29397, 39435, 40359, 48995, 50143, 67265, 107789, 146985, 150429, 201795, 250715, 292297, 323367, 538945, 551573, 752145, 876891, 1461485, 1616835, 1654719, 2757865, 3215267, 4384455, 8273595, 9645801, 11984177, 16076335, 35952531, 48229005, 59920885, 131825947, 179762655, 395477841, 659129735, 1977389205]

約数ペア:

[(1, 1977389205), (3, 659129735), (5, 395477841), (11, 179762655), (15, 131825947), (33, 59920885), (41, 48229005), (55, 35952531), (123, 16076335), (165, 11984177), (205, 9645801), (239, 8273595), (451, 4384455), (615, 3215267), (717, 2757865), (1195, 1654719), (1223, 1616835), (1353, 1461485), (2255, 876891), (2629, 752145), (3585, 551573), (3669, 538945), (6115, 323367), (6765, 292297), (7887, 250715), (9799, 201795), (13145, 150429), (13453, 146985), (18345, 107789), (29397, 67265), (39435, 50143), (40359, 48995)]