12663620

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{157}}^1$

素因数の和:312

約数の個数: 48

約数和(自身を含む): 27738480

約数和(自身を除く): 15074860

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 109, 148, 157, 185, 218, 314, 370, 436, 545, 628, 740, 785, 1090, 1570, 2180, 3140, 4033, 5809, 8066, 11618, 16132, 17113, 20165, 23236, 29045, 34226, 40330, 58090, 68452, 80660, 85565, 116180, 171130, 342260, 633181, 1266362, 2532724, 3165905, 6331810, 12663620]

約数ペア:

[(1, 12663620), (2, 6331810), (4, 3165905), (5, 2532724), (10, 1266362), (20, 633181), (37, 342260), (74, 171130), (109, 116180), (148, 85565), (157, 80660), (185, 68452), (218, 58090), (314, 40330), (370, 34226), (436, 29045), (545, 23236), (628, 20165), (740, 17113), (785, 16132), (1090, 11618), (1570, 8066), (2180, 5809), (3140, 4033)]