39888205

素因数分解:

$5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1$

素因数の和:254

約数の個数: 48

約数和(自身を含む): 60304176

約数和(自身を除く): 20415971

約数列:

[1, 5, 7, 17, 35, 49, 61, 85, 119, 157, 245, 305, 427, 595, 785, 833, 1037, 1099, 2135, 2669, 2989, 4165, 5185, 5495, 7259, 7693, 9577, 13345, 14945, 18683, 36295, 38465, 47885, 50813, 67039, 93415, 130781, 162809, 254065, 335195, 469273, 653905, 814045, 1139663, 2346365, 5698315, 7977641, 39888205]

約数ペア:

[(1, 39888205), (5, 7977641), (7, 5698315), (17, 2346365), (35, 1139663), (49, 814045), (61, 653905), (85, 469273), (119, 335195), (157, 254065), (245, 162809), (305, 130781), (427, 93415), (595, 67039), (785, 50813), (833, 47885), (1037, 38465), (1099, 36295), (2135, 18683), (2669, 14945), (2989, 13345), (4165, 9577), (5185, 7693), (5495, 7259)]