1289726230

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{38603}}^1$

素因数の和:38880

約数の個数: 32

約数和(自身を含む): 2509877664

約数和(自身を除く): 1220151434

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 257, 514, 1285, 2570, 3341, 6682, 16705, 33410, 38603, 77206, 193015, 386030, 501839, 1003678, 2509195, 5018390, 9920971, 19841942, 49604855, 99209710, 128972623, 257945246, 644863115, 1289726230]

約数ペア:

[(1, 1289726230), (2, 644863115), (5, 257945246), (10, 128972623), (13, 99209710), (26, 49604855), (65, 19841942), (130, 9920971), (257, 5018390), (514, 2509195), (1285, 1003678), (2570, 501839), (3341, 386030), (6682, 193015), (16705, 77206), (33410, 38603)]