72612020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{317}}^1\times {\mathrm{881}}^1$

素因数の和:1220

約数の個数: 48

約数和(自身を含む): 164919888

約数和(自身を除く): 92307868

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 317, 634, 881, 1268, 1585, 1762, 3170, 3524, 4121, 4405, 6340, 8242, 8810, 11453, 16484, 17620, 20605, 22906, 41210, 45812, 57265, 82420, 114530, 229060, 279277, 558554, 1117108, 1396385, 2792770, 3630601, 5585540, 7261202, 14522404, 18153005, 36306010, 72612020]

約数ペア:

[(1, 72612020), (2, 36306010), (4, 18153005), (5, 14522404), (10, 7261202), (13, 5585540), (20, 3630601), (26, 2792770), (52, 1396385), (65, 1117108), (130, 558554), (260, 279277), (317, 229060), (634, 114530), (881, 82420), (1268, 57265), (1585, 45812), (1762, 41210), (3170, 22906), (3524, 20605), (4121, 17620), (4405, 16484), (6340, 11453), (8242, 8810)]