20868740

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{28201}}^1$

素因数の和:28247

約数の個数: 24

約数和(自身を含む): 45010392

約数和(自身を除く): 24141652

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 28201, 56402, 112804, 141005, 282010, 564020, 1043437, 2086874, 4173748, 5217185, 10434370, 20868740]

約数ペア:

[(1, 20868740), (2, 10434370), (4, 5217185), (5, 4173748), (10, 2086874), (20, 1043437), (37, 564020), (74, 282010), (148, 141005), (185, 112804), (370, 56402), (740, 28201)]