20500960

素因数分解:

$2^5\times 5^1\times {\mathrm{37}}^1\times {\mathrm{3463}}^1$

素因数の和:3515

約数の個数: 48

約数和(自身を含む): 49756896

約数和(自身を除く): 29255936

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 74, 80, 148, 160, 185, 296, 370, 592, 740, 1184, 1480, 2960, 3463, 5920, 6926, 13852, 17315, 27704, 34630, 55408, 69260, 110816, 128131, 138520, 256262, 277040, 512524, 554080, 640655, 1025048, 1281310, 2050096, 2562620, 4100192, 5125240, 10250480, 20500960]

約数ペア:

[(1, 20500960), (2, 10250480), (4, 5125240), (5, 4100192), (8, 2562620), (10, 2050096), (16, 1281310), (20, 1025048), (32, 640655), (37, 554080), (40, 512524), (74, 277040), (80, 256262), (148, 138520), (160, 128131), (185, 110816), (296, 69260), (370, 55408), (592, 34630), (740, 27704), (1184, 17315), (1480, 13852), (2960, 6926), (3463, 5920)]