64689646

素因数分解:

$2^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{211}}^1\times {\mathrm{359}}^1$

素因数の和:640

約数の個数: 32

約数和(自身を含む): 113564160

約数和(自身を除く): 48874514

約数列:

[1, 2, 7, 14, 61, 122, 211, 359, 422, 427, 718, 854, 1477, 2513, 2954, 5026, 12871, 21899, 25742, 43798, 75749, 90097, 151498, 153293, 180194, 306586, 530243, 1060486, 4620689, 9241378, 32344823, 64689646]

約数ペア:

[(1, 64689646), (2, 32344823), (7, 9241378), (14, 4620689), (61, 1060486), (122, 530243), (211, 306586), (359, 180194), (422, 153293), (427, 151498), (718, 90097), (854, 75749), (1477, 43798), (2513, 25742), (2954, 21899), (5026, 12871)]