2015901640

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{367}}^1\times {\mathrm{2591}}^1$

素因数の和:3022

約数の個数: 64

約数和(自身を含む): 4635740160

約数和(自身を除く): 2619838520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 367, 424, 530, 734, 1060, 1468, 1835, 2120, 2591, 2936, 3670, 5182, 7340, 10364, 12955, 14680, 19451, 20728, 25910, 38902, 51820, 77804, 97255, 103640, 137323, 155608, 194510, 274646, 389020, 549292, 686615, 778040, 950897, 1098584, 1373230, 1901794, 2746460, 3803588, 4754485, 5492920, 7607176, 9508970, 19017940, 38035880, 50397541, 100795082, 201590164, 251987705, 403180328, 503975410, 1007950820, 2015901640]

約数ペア:

[(1, 2015901640), (2, 1007950820), (4, 503975410), (5, 403180328), (8, 251987705), (10, 201590164), (20, 100795082), (40, 50397541), (53, 38035880), (106, 19017940), (212, 9508970), (265, 7607176), (367, 5492920), (424, 4754485), (530, 3803588), (734, 2746460), (1060, 1901794), (1468, 1373230), (1835, 1098584), (2120, 950897), (2591, 778040), (2936, 686615), (3670, 549292), (5182, 389020), (7340, 274646), (10364, 194510), (12955, 155608), (14680, 137323), (19451, 103640), (20728, 97255), (25910, 77804), (38902, 51820)]