20216540

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{619}}^1$

素因数の和:722

約数の個数: 48

約数和(自身を含む): 44997120

約数和(自身を除く): 24780580

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 71, 92, 115, 142, 230, 284, 355, 460, 619, 710, 1238, 1420, 1633, 2476, 3095, 3266, 6190, 6532, 8165, 12380, 14237, 16330, 28474, 32660, 43949, 56948, 71185, 87898, 142370, 175796, 219745, 284740, 439490, 878980, 1010827, 2021654, 4043308, 5054135, 10108270, 20216540]

約数ペア:

[(1, 20216540), (2, 10108270), (4, 5054135), (5, 4043308), (10, 2021654), (20, 1010827), (23, 878980), (46, 439490), (71, 284740), (92, 219745), (115, 175796), (142, 142370), (230, 87898), (284, 71185), (355, 56948), (460, 43949), (619, 32660), (710, 28474), (1238, 16330), (1420, 14237), (1633, 12380), (2476, 8165), (3095, 6532), (3266, 6190)]