2780168

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1$

素因数の和:221

約数の個数: 32

約数和(自身を含む): 5443200

約数和(自身を除く): 2663032

約数列:

[1, 2, 4, 8, 53, 79, 83, 106, 158, 166, 212, 316, 332, 424, 632, 664, 4187, 4399, 6557, 8374, 8798, 13114, 16748, 17596, 26228, 33496, 35192, 52456, 347521, 695042, 1390084, 2780168]

約数ペア:

[(1, 2780168), (2, 1390084), (4, 695042), (8, 347521), (53, 52456), (79, 35192), (83, 33496), (106, 26228), (158, 17596), (166, 16748), (212, 13114), (316, 8798), (332, 8374), (424, 6557), (632, 4399), (664, 4187)]