678844

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{149}}^1$

素因数の和:237

約数の個数: 24

約数和(自身を含む): 1285200

約数和(自身を除く): 606356

約数列:

[1, 2, 4, 17, 34, 67, 68, 134, 149, 268, 298, 596, 1139, 2278, 2533, 4556, 5066, 9983, 10132, 19966, 39932, 169711, 339422, 678844]

約数ペア:

[(1, 678844), (2, 339422), (4, 169711), (17, 39932), (34, 19966), (67, 10132), (68, 9983), (134, 5066), (149, 4556), (268, 2533), (298, 2278), (596, 1139)]