20786020

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{619}}^1$

素因数の和:724

約数の個数: 48

約数和(自身を含む): 46247040

約数和(自身を除く): 25461020

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 73, 92, 115, 146, 230, 292, 365, 460, 619, 730, 1238, 1460, 1679, 2476, 3095, 3358, 6190, 6716, 8395, 12380, 14237, 16790, 28474, 33580, 45187, 56948, 71185, 90374, 142370, 180748, 225935, 284740, 451870, 903740, 1039301, 2078602, 4157204, 5196505, 10393010, 20786020]

約数ペア:

[(1, 20786020), (2, 10393010), (4, 5196505), (5, 4157204), (10, 2078602), (20, 1039301), (23, 903740), (46, 451870), (73, 284740), (92, 225935), (115, 180748), (146, 142370), (230, 90374), (292, 71185), (365, 56948), (460, 45187), (619, 33580), (730, 28474), (1238, 16790), (1460, 14237), (1679, 12380), (2476, 8395), (3095, 6716), (3358, 6190)]