3686380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:226

約数の個数: 48

約数和(自身を含む): 8316000

約数和(自身を除く): 4629620

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 89, 95, 109, 178, 190, 218, 356, 380, 436, 445, 545, 890, 1090, 1691, 1780, 2071, 2180, 3382, 4142, 6764, 8284, 8455, 9701, 10355, 16910, 19402, 20710, 33820, 38804, 41420, 48505, 97010, 184319, 194020, 368638, 737276, 921595, 1843190, 3686380]

約数ペア:

[(1, 3686380), (2, 1843190), (4, 921595), (5, 737276), (10, 368638), (19, 194020), (20, 184319), (38, 97010), (76, 48505), (89, 41420), (95, 38804), (109, 33820), (178, 20710), (190, 19402), (218, 16910), (356, 10355), (380, 9701), (436, 8455), (445, 8284), (545, 6764), (890, 4142), (1090, 3382), (1691, 2180), (1780, 2071)]