78850220

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{1019}}^1$

素因数の和:1154

約数の個数: 48

約数和(自身を含む): 171188640

約数和(自身を除く): 92338420

約数列:

[1, 2, 4, 5, 10, 20, 53, 73, 106, 146, 212, 265, 292, 365, 530, 730, 1019, 1060, 1460, 2038, 3869, 4076, 5095, 7738, 10190, 15476, 19345, 20380, 38690, 54007, 74387, 77380, 108014, 148774, 216028, 270035, 297548, 371935, 540070, 743870, 1080140, 1487740, 3942511, 7885022, 15770044, 19712555, 39425110, 78850220]

約数ペア:

[(1, 78850220), (2, 39425110), (4, 19712555), (5, 15770044), (10, 7885022), (20, 3942511), (53, 1487740), (73, 1080140), (106, 743870), (146, 540070), (212, 371935), (265, 297548), (292, 270035), (365, 216028), (530, 148774), (730, 108014), (1019, 77380), (1060, 74387), (1460, 54007), (2038, 38690), (3869, 20380), (4076, 19345), (5095, 15476), (7738, 10190)]