201406990

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{69691}}^1$

素因数の和:69732

約数の個数: 24

約数和(自身を含む): 385117992

約数和(自身を除く): 183711002

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 289, 578, 1445, 2890, 69691, 139382, 348455, 696910, 1184747, 2369494, 5923735, 11847470, 20140699, 40281398, 100703495, 201406990]

約数ペア:

[(1, 201406990), (2, 100703495), (5, 40281398), (10, 20140699), (17, 11847470), (34, 5923735), (85, 2369494), (170, 1184747), (289, 696910), (578, 348455), (1445, 139382), (2890, 69691)]