16402940

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{12241}}^1$

素因数の和:12317

約数の個数: 24

約数和(自身を含む): 34963152

約数和(自身を除く): 18560212

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 1340, 12241, 24482, 48964, 61205, 122410, 244820, 820147, 1640294, 3280588, 4100735, 8201470, 16402940]

約数ペア:

[(1, 16402940), (2, 8201470), (4, 4100735), (5, 3280588), (10, 1640294), (20, 820147), (67, 244820), (134, 122410), (268, 61205), (335, 48964), (670, 24482), (1340, 12241)]