40670420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{449}}^1\times {\mathrm{647}}^1$

素因数の和:1112

約数の個数: 48

約数和(自身を含む): 97977600

約数和(自身を除く): 57307180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 449, 647, 898, 1294, 1796, 2245, 2588, 3143, 3235, 4490, 4529, 6286, 6470, 8980, 9058, 12572, 12940, 15715, 18116, 22645, 31430, 45290, 62860, 90580, 290503, 581006, 1162012, 1452515, 2033521, 2905030, 4067042, 5810060, 8134084, 10167605, 20335210, 40670420]

約数ペア:

[(1, 40670420), (2, 20335210), (4, 10167605), (5, 8134084), (7, 5810060), (10, 4067042), (14, 2905030), (20, 2033521), (28, 1452515), (35, 1162012), (70, 581006), (140, 290503), (449, 90580), (647, 62860), (898, 45290), (1294, 31430), (1796, 22645), (2245, 18116), (2588, 15715), (3143, 12940), (3235, 12572), (4490, 9058), (4529, 8980), (6286, 6470)]