4183420

素因数分解:

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

素因数の和:238

約数の個数: 48

約数和(自身を含む): 9424800

約数和(自身を除く): 5241380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 101, 109, 190, 202, 218, 380, 404, 436, 505, 545, 1010, 1090, 1919, 2020, 2071, 2180, 3838, 4142, 7676, 8284, 9595, 10355, 11009, 19190, 20710, 22018, 38380, 41420, 44036, 55045, 110090, 209171, 220180, 418342, 836684, 1045855, 2091710, 4183420]

約数ペア:

[(1, 4183420), (2, 2091710), (4, 1045855), (5, 836684), (10, 418342), (19, 220180), (20, 209171), (38, 110090), (76, 55045), (95, 44036), (101, 41420), (109, 38380), (190, 22018), (202, 20710), (218, 19190), (380, 11009), (404, 10355), (436, 9595), (505, 8284), (545, 7676), (1010, 4142), (1090, 3838), (1919, 2180), (2020, 2071)]