68518990

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{2663}}^1$

素因数の和:2784

約数の個数: 32

約数和(自身を含む): 128894976

約数和(自身を除く): 60375986

約数列:

[1, 2, 5, 10, 31, 62, 83, 155, 166, 310, 415, 830, 2573, 2663, 5146, 5326, 12865, 13315, 25730, 26630, 82553, 165106, 221029, 412765, 442058, 825530, 1105145, 2210290, 6851899, 13703798, 34259495, 68518990]

約数ペア:

[(1, 68518990), (2, 34259495), (5, 13703798), (10, 6851899), (31, 2210290), (62, 1105145), (83, 825530), (155, 442058), (166, 412765), (310, 221029), (415, 165106), (830, 82553), (2573, 26630), (2663, 25730), (5146, 13315), (5326, 12865)]