40656140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{1949}}^1$

素因数の和:2114

約数の個数: 48

約数和(自身を含む): 98280000

約数和(自身を除く): 57623860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 149, 298, 596, 745, 1043, 1490, 1949, 2086, 2980, 3898, 4172, 5215, 7796, 9745, 10430, 13643, 19490, 20860, 27286, 38980, 54572, 68215, 136430, 272860, 290401, 580802, 1161604, 1452005, 2032807, 2904010, 4065614, 5808020, 8131228, 10164035, 20328070, 40656140]

約数ペア:

[(1, 40656140), (2, 20328070), (4, 10164035), (5, 8131228), (7, 5808020), (10, 4065614), (14, 2904010), (20, 2032807), (28, 1452005), (35, 1161604), (70, 580802), (140, 290401), (149, 272860), (298, 136430), (596, 68215), (745, 54572), (1043, 38980), (1490, 27286), (1949, 20860), (2086, 19490), (2980, 13643), (3898, 10430), (4172, 9745), (5215, 7796)]