20081408

素因数分解:

$2^8\times {\mathrm{47}}^1\times {\mathrm{1669}}^1$

素因数の和:1732

約数の個数: 36

約数和(自身を含む): 40961760

約数和(自身を除く): 20880352

約数列:

[1, 2, 4, 8, 16, 32, 47, 64, 94, 128, 188, 256, 376, 752, 1504, 1669, 3008, 3338, 6016, 6676, 12032, 13352, 26704, 53408, 78443, 106816, 156886, 213632, 313772, 427264, 627544, 1255088, 2510176, 5020352, 10040704, 20081408]

約数ペア:

[(1, 20081408), (2, 10040704), (4, 5020352), (8, 2510176), (16, 1255088), (32, 627544), (47, 427264), (64, 313772), (94, 213632), (128, 156886), (188, 106816), (256, 78443), (376, 53408), (752, 26704), (1504, 13352), (1669, 12032), (3008, 6676), (3338, 6016)]