8366840

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1$

素因数の和:240

約数の個数: 64

約数和(自身を含む): 20196000

約数和(自身を除く): 11829160

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 101, 109, 152, 190, 202, 218, 380, 404, 436, 505, 545, 760, 808, 872, 1010, 1090, 1919, 2020, 2071, 2180, 3838, 4040, 4142, 4360, 7676, 8284, 9595, 10355, 11009, 15352, 16568, 19190, 20710, 22018, 38380, 41420, 44036, 55045, 76760, 82840, 88072, 110090, 209171, 220180, 418342, 440360, 836684, 1045855, 1673368, 2091710, 4183420, 8366840]

約数ペア:

[(1, 8366840), (2, 4183420), (4, 2091710), (5, 1673368), (8, 1045855), (10, 836684), (19, 440360), (20, 418342), (38, 220180), (40, 209171), (76, 110090), (95, 88072), (101, 82840), (109, 76760), (152, 55045), (190, 44036), (202, 41420), (218, 38380), (380, 22018), (404, 20710), (436, 19190), (505, 16568), (545, 15352), (760, 11009), (808, 10355), (872, 9595), (1010, 8284), (1090, 7676), (1919, 4360), (2020, 4142), (2071, 4040), (2180, 3838)]