18549620

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1\times {\mathrm{127}}^1$

素因数の和:312

約数の個数: 48

約数和(自身を含む): 40212480

約数和(自身を除く): 21662860

約数列:

[1, 2, 4, 5, 10, 20, 67, 109, 127, 134, 218, 254, 268, 335, 436, 508, 545, 635, 670, 1090, 1270, 1340, 2180, 2540, 7303, 8509, 13843, 14606, 17018, 27686, 29212, 34036, 36515, 42545, 55372, 69215, 73030, 85090, 138430, 146060, 170180, 276860, 927481, 1854962, 3709924, 4637405, 9274810, 18549620]

約数ペア:

[(1, 18549620), (2, 9274810), (4, 4637405), (5, 3709924), (10, 1854962), (20, 927481), (67, 276860), (109, 170180), (127, 146060), (134, 138430), (218, 85090), (254, 73030), (268, 69215), (335, 55372), (436, 42545), (508, 36515), (545, 34036), (635, 29212), (670, 27686), (1090, 17018), (1270, 14606), (1340, 13843), (2180, 8509), (2540, 7303)]