164425640

素因数分解:

$2^3\times 5^1\times {\mathrm{1619}}^1\times {\mathrm{2539}}^1$

素因数の和:4169

約数の個数: 32

約数和(自身を含む): 370332000

約数和(自身を除く): 205906360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1619, 2539, 3238, 5078, 6476, 8095, 10156, 12695, 12952, 16190, 20312, 25390, 32380, 50780, 64760, 101560, 4110641, 8221282, 16442564, 20553205, 32885128, 41106410, 82212820, 164425640]

約数ペア:

[(1, 164425640), (2, 82212820), (4, 41106410), (5, 32885128), (8, 20553205), (10, 16442564), (20, 8221282), (40, 4110641), (1619, 101560), (2539, 64760), (3238, 50780), (5078, 32380), (6476, 25390), (8095, 20312), (10156, 16190), (12695, 12952)]