381531640

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{194659}}^1$

素因数の和:194684

約数の個数: 48

約数和(自身を含む): 998605800

約数和(自身を除く): 617074160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 194659, 389318, 778636, 973295, 1362613, 1557272, 1946590, 2725226, 3893180, 5450452, 6813065, 7786360, 9538291, 10900904, 13626130, 19076582, 27252260, 38153164, 47691455, 54504520, 76306328, 95382910, 190765820, 381531640]

約数ペア:

[(1, 381531640), (2, 190765820), (4, 95382910), (5, 76306328), (7, 54504520), (8, 47691455), (10, 38153164), (14, 27252260), (20, 19076582), (28, 13626130), (35, 10900904), (40, 9538291), (49, 7786360), (56, 6813065), (70, 5450452), (98, 3893180), (140, 2725226), (196, 1946590), (245, 1557272), (280, 1362613), (392, 973295), (490, 778636), (980, 389318), (1960, 194659)]