30790980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{15551}}^1$

素因数の和:15577

約数の個数: 72

約数和(自身を含む): 101896704

約数和(自身を除く): 71105724

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 15551, 31102, 46653, 62204, 77755, 93306, 139959, 155510, 171061, 186612, 233265, 279918, 311020, 342122, 466530, 513183, 559836, 684244, 699795, 855305, 933060, 1026366, 1399590, 1539549, 1710610, 2052732, 2565915, 2799180, 3079098, 3421220, 5131830, 6158196, 7697745, 10263660, 15395490, 30790980]

約数ペア:

[(1, 30790980), (2, 15395490), (3, 10263660), (4, 7697745), (5, 6158196), (6, 5131830), (9, 3421220), (10, 3079098), (11, 2799180), (12, 2565915), (15, 2052732), (18, 1710610), (20, 1539549), (22, 1399590), (30, 1026366), (33, 933060), (36, 855305), (44, 699795), (45, 684244), (55, 559836), (60, 513183), (66, 466530), (90, 342122), (99, 311020), (110, 279918), (132, 233265), (165, 186612), (180, 171061), (198, 155510), (220, 139959), (330, 93306), (396, 77755), (495, 62204), (660, 46653), (990, 31102), (1980, 15551)]