20381892

素因数分解:

$2^2\times 3^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{439}}^1$

素因数の和:572

約数の個数: 48

約数和(自身を含む): 49230720

約数和(自身を除く): 28848828

約数列:

[1, 2, 3, 4, 6, 12, 53, 73, 106, 146, 159, 212, 219, 292, 318, 438, 439, 636, 876, 878, 1317, 1756, 2634, 3869, 5268, 7738, 11607, 15476, 23214, 23267, 32047, 46428, 46534, 64094, 69801, 93068, 96141, 128188, 139602, 192282, 279204, 384564, 1698491, 3396982, 5095473, 6793964, 10190946, 20381892]

約数ペア:

[(1, 20381892), (2, 10190946), (3, 6793964), (4, 5095473), (6, 3396982), (12, 1698491), (53, 384564), (73, 279204), (106, 192282), (146, 139602), (159, 128188), (212, 96141), (219, 93068), (292, 69801), (318, 64094), (438, 46534), (439, 46428), (636, 32047), (876, 23267), (878, 23214), (1317, 15476), (1756, 11607), (2634, 7738), (3869, 5268)]