13663280

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1$

素因数の和:222

約数の個数: 80

約数和(自身を含む): 34149600

約数和(自身を除く): 20486320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 89, 95, 101, 152, 178, 190, 202, 304, 356, 380, 404, 445, 505, 712, 760, 808, 890, 1010, 1424, 1520, 1616, 1691, 1780, 1919, 2020, 3382, 3560, 3838, 4040, 6764, 7120, 7676, 8080, 8455, 8989, 9595, 13528, 15352, 16910, 17978, 19190, 27056, 30704, 33820, 35956, 38380, 44945, 67640, 71912, 76760, 89890, 135280, 143824, 153520, 170791, 179780, 341582, 359560, 683164, 719120, 853955, 1366328, 1707910, 2732656, 3415820, 6831640, 13663280]

約数ペア:

[(1, 13663280), (2, 6831640), (4, 3415820), (5, 2732656), (8, 1707910), (10, 1366328), (16, 853955), (19, 719120), (20, 683164), (38, 359560), (40, 341582), (76, 179780), (80, 170791), (89, 153520), (95, 143824), (101, 135280), (152, 89890), (178, 76760), (190, 71912), (202, 67640), (304, 44945), (356, 38380), (380, 35956), (404, 33820), (445, 30704), (505, 27056), (712, 19190), (760, 17978), (808, 16910), (890, 15352), (1010, 13528), (1424, 9595), (1520, 8989), (1616, 8455), (1691, 8080), (1780, 7676), (1919, 7120), (2020, 6764), (3382, 4040), (3560, 3838)]