1281996

素因数分解:

$2^2\times 3^2\times {\mathrm{149}}^1\times {\mathrm{239}}^1$

素因数の和:398

約数の個数: 36

約数和(自身を含む): 3276000

約数和(自身を除く): 1994004

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 149, 239, 298, 447, 478, 596, 717, 894, 956, 1341, 1434, 1788, 2151, 2682, 2868, 4302, 5364, 8604, 35611, 71222, 106833, 142444, 213666, 320499, 427332, 640998, 1281996]

約数ペア:

[(1, 1281996), (2, 640998), (3, 427332), (4, 320499), (6, 213666), (9, 142444), (12, 106833), (18, 71222), (36, 35611), (149, 8604), (239, 5364), (298, 4302), (447, 2868), (478, 2682), (596, 2151), (717, 1788), (894, 1434), (956, 1341)]