117391720

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{521}}^1$

素因数の和:706

約数の個数: 64

約数和(自身を含む): 272859840

約数和(自身を除く): 155468120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 131, 172, 215, 262, 344, 430, 521, 524, 655, 860, 1042, 1048, 1310, 1720, 2084, 2605, 2620, 4168, 5210, 5240, 5633, 10420, 11266, 20840, 22403, 22532, 28165, 44806, 45064, 56330, 68251, 89612, 112015, 112660, 136502, 179224, 224030, 225320, 273004, 341255, 448060, 546008, 682510, 896120, 1365020, 2730040, 2934793, 5869586, 11739172, 14673965, 23478344, 29347930, 58695860, 117391720]

約数ペア:

[(1, 117391720), (2, 58695860), (4, 29347930), (5, 23478344), (8, 14673965), (10, 11739172), (20, 5869586), (40, 2934793), (43, 2730040), (86, 1365020), (131, 896120), (172, 682510), (215, 546008), (262, 448060), (344, 341255), (430, 273004), (521, 225320), (524, 224030), (655, 179224), (860, 136502), (1042, 112660), (1048, 112015), (1310, 89612), (1720, 68251), (2084, 56330), (2605, 45064), (2620, 44806), (4168, 28165), (5210, 22532), (5240, 22403), (5633, 20840), (10420, 11266)]