20617736

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:222

約数の個数: 64

約数和(自身を含む): 44064000

約数和(自身を除く): 23446264

約数列:

[1, 2, 4, 8, 17, 19, 34, 38, 68, 76, 79, 101, 136, 152, 158, 202, 316, 323, 404, 632, 646, 808, 1292, 1343, 1501, 1717, 1919, 2584, 2686, 3002, 3434, 3838, 5372, 6004, 6868, 7676, 7979, 10744, 12008, 13736, 15352, 15958, 25517, 31916, 32623, 51034, 63832, 65246, 102068, 130492, 135643, 151601, 204136, 260984, 271286, 303202, 542572, 606404, 1085144, 1212808, 2577217, 5154434, 10308868, 20617736]

約数ペア:

[(1, 20617736), (2, 10308868), (4, 5154434), (8, 2577217), (17, 1212808), (19, 1085144), (34, 606404), (38, 542572), (68, 303202), (76, 271286), (79, 260984), (101, 204136), (136, 151601), (152, 135643), (158, 130492), (202, 102068), (316, 65246), (323, 63832), (404, 51034), (632, 32623), (646, 31916), (808, 25517), (1292, 15958), (1343, 15352), (1501, 13736), (1717, 12008), (1919, 10744), (2584, 7979), (2686, 7676), (3002, 6868), (3434, 6004), (3838, 5372)]