19977552100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{386413}}^1$

素因数の和:386485

約数の個数: 72

約数和(自身を含む): 48298658688

約数和(自身を除く): 28321106588

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 47, 50, 55, 94, 100, 110, 188, 220, 235, 275, 470, 517, 550, 940, 1034, 1100, 1175, 2068, 2350, 2585, 4700, 5170, 10340, 12925, 25850, 51700, 386413, 772826, 1545652, 1932065, 3864130, 4250543, 7728260, 8501086, 9660325, 17002172, 18161411, 19320650, 21252715, 36322822, 38641300, 42505430, 72645644, 85010860, 90807055, 106263575, 181614110, 199775521, 212527150, 363228220, 399551042, 425054300, 454035275, 799102084, 908070550, 998877605, 1816141100, 1997755210, 3995510420, 4994388025, 9988776050, 19977552100]

約数ペア:

[(1, 19977552100), (2, 9988776050), (4, 4994388025), (5, 3995510420), (10, 1997755210), (11, 1816141100), (20, 998877605), (22, 908070550), (25, 799102084), (44, 454035275), (47, 425054300), (50, 399551042), (55, 363228220), (94, 212527150), (100, 199775521), (110, 181614110), (188, 106263575), (220, 90807055), (235, 85010860), (275, 72645644), (470, 42505430), (517, 38641300), (550, 36322822), (940, 21252715), (1034, 19320650), (1100, 18161411), (1175, 17002172), (2068, 9660325), (2350, 8501086), (2585, 7728260), (4700, 4250543), (5170, 3864130), (10340, 1932065), (12925, 1545652), (25850, 772826), (51700, 386413)]