15916660

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{157}}^1$

素因数の和:340

約数の個数: 48

約数和(自身を含む): 34799184

約数和(自身を除く): 18882524

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 137, 148, 157, 185, 274, 314, 370, 548, 628, 685, 740, 785, 1370, 1570, 2740, 3140, 5069, 5809, 10138, 11618, 20276, 21509, 23236, 25345, 29045, 43018, 50690, 58090, 86036, 101380, 107545, 116180, 215090, 430180, 795833, 1591666, 3183332, 3979165, 7958330, 15916660]

約数ペア:

[(1, 15916660), (2, 7958330), (4, 3979165), (5, 3183332), (10, 1591666), (20, 795833), (37, 430180), (74, 215090), (137, 116180), (148, 107545), (157, 101380), (185, 86036), (274, 58090), (314, 50690), (370, 43018), (548, 29045), (628, 25345), (685, 23236), (740, 21509), (785, 20276), (1370, 11618), (1570, 10138), (2740, 5809), (3140, 5069)]