5478980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{1621}}^1$

素因数の和:1656

約数の個数: 36

約数和(自身を含む): 12466692

約数和(自身を除く): 6987712

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1621, 1690, 3242, 3380, 6484, 8105, 16210, 21073, 32420, 42146, 84292, 105365, 210730, 273949, 421460, 547898, 1095796, 1369745, 2739490, 5478980]

約数ペア:

[(1, 5478980), (2, 2739490), (4, 1369745), (5, 1095796), (10, 547898), (13, 421460), (20, 273949), (26, 210730), (52, 105365), (65, 84292), (130, 42146), (169, 32420), (260, 21073), (338, 16210), (676, 8105), (845, 6484), (1621, 3380), (1690, 3242)]