25327240

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{157}}^1$

素因数の和:314

約数の個数: 64

約数和(自身を含む): 59439600

約数和(自身を除く): 34112360

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 109, 148, 157, 185, 218, 296, 314, 370, 436, 545, 628, 740, 785, 872, 1090, 1256, 1480, 1570, 2180, 3140, 4033, 4360, 5809, 6280, 8066, 11618, 16132, 17113, 20165, 23236, 29045, 32264, 34226, 40330, 46472, 58090, 68452, 80660, 85565, 116180, 136904, 161320, 171130, 232360, 342260, 633181, 684520, 1266362, 2532724, 3165905, 5065448, 6331810, 12663620, 25327240]

約数ペア:

[(1, 25327240), (2, 12663620), (4, 6331810), (5, 5065448), (8, 3165905), (10, 2532724), (20, 1266362), (37, 684520), (40, 633181), (74, 342260), (109, 232360), (148, 171130), (157, 161320), (185, 136904), (218, 116180), (296, 85565), (314, 80660), (370, 68452), (436, 58090), (545, 46472), (628, 40330), (740, 34226), (785, 32264), (872, 29045), (1090, 23236), (1256, 20165), (1480, 17113), (1570, 16132), (2180, 11618), (3140, 8066), (4033, 6280), (4360, 5809)]