28805240

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{19463}}^1$

素因数の和:19511

約数の個数: 32

約数和(自身を含む): 66566880

約数和(自身を除く): 37761640

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 19463, 38926, 77852, 97315, 155704, 194630, 389260, 720131, 778520, 1440262, 2880524, 3600655, 5761048, 7201310, 14402620, 28805240]

約数ペア:

[(1, 28805240), (2, 14402620), (4, 7201310), (5, 5761048), (8, 3600655), (10, 2880524), (20, 1440262), (37, 778520), (40, 720131), (74, 389260), (148, 194630), (185, 155704), (296, 97315), (370, 77852), (740, 38926), (1480, 19463)]