165288520

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{163}}^1\times {\mathrm{251}}^1$

素因数の和:526

約数の個数: 64

約数和(自身を含む): 379391040

約数和(自身を除く): 214102520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 163, 202, 251, 326, 404, 502, 505, 652, 808, 815, 1004, 1010, 1255, 1304, 1630, 2008, 2020, 2510, 3260, 4040, 5020, 6520, 10040, 16463, 25351, 32926, 40913, 50702, 65852, 81826, 82315, 101404, 126755, 131704, 163652, 164630, 202808, 204565, 253510, 327304, 329260, 409130, 507020, 658520, 818260, 1014040, 1636520, 4132213, 8264426, 16528852, 20661065, 33057704, 41322130, 82644260, 165288520]

約数ペア:

[(1, 165288520), (2, 82644260), (4, 41322130), (5, 33057704), (8, 20661065), (10, 16528852), (20, 8264426), (40, 4132213), (101, 1636520), (163, 1014040), (202, 818260), (251, 658520), (326, 507020), (404, 409130), (502, 329260), (505, 327304), (652, 253510), (808, 204565), (815, 202808), (1004, 164630), (1010, 163652), (1255, 131704), (1304, 126755), (1630, 101404), (2008, 82315), (2020, 81826), (2510, 65852), (3260, 50702), (4040, 40913), (5020, 32926), (6520, 25351), (10040, 16463)]