66863620

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{1117}}^1$

素因数の和:1240

約数の個数: 48

約数和(自身を含む): 145939248

約数和(自身を除く): 79075628

約数列:

[1, 2, 4, 5, 10, 20, 41, 73, 82, 146, 164, 205, 292, 365, 410, 730, 820, 1117, 1460, 2234, 2993, 4468, 5585, 5986, 11170, 11972, 14965, 22340, 29930, 45797, 59860, 81541, 91594, 163082, 183188, 228985, 326164, 407705, 457970, 815410, 915940, 1630820, 3343181, 6686362, 13372724, 16715905, 33431810, 66863620]

約数ペア:

[(1, 66863620), (2, 33431810), (4, 16715905), (5, 13372724), (10, 6686362), (20, 3343181), (41, 1630820), (73, 915940), (82, 815410), (146, 457970), (164, 407705), (205, 326164), (292, 228985), (365, 183188), (410, 163082), (730, 91594), (820, 81541), (1117, 59860), (1460, 45797), (2234, 29930), (2993, 22340), (4468, 14965), (5585, 11972), (5986, 11170)]