64295420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{353}}^1\times {\mathrm{1301}}^1$

素因数の和:1670

約数の個数: 48

約数和(自身を含む): 154865088

約数和(自身を除く): 90569668

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 353, 706, 1301, 1412, 1765, 2471, 2602, 3530, 4942, 5204, 6505, 7060, 9107, 9884, 12355, 13010, 18214, 24710, 26020, 36428, 45535, 49420, 91070, 182140, 459253, 918506, 1837012, 2296265, 3214771, 4592530, 6429542, 9185060, 12859084, 16073855, 32147710, 64295420]

約数ペア:

[(1, 64295420), (2, 32147710), (4, 16073855), (5, 12859084), (7, 9185060), (10, 6429542), (14, 4592530), (20, 3214771), (28, 2296265), (35, 1837012), (70, 918506), (140, 459253), (353, 182140), (706, 91070), (1301, 49420), (1412, 45535), (1765, 36428), (2471, 26020), (2602, 24710), (3530, 18214), (4942, 13010), (5204, 12355), (6505, 9884), (7060, 9107)]