19401460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1051}}^1$

素因数の和:1144

約数の個数: 48

約数和(自身を含む): 44537472

約数和(自身を除く): 25136012

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 71, 130, 142, 260, 284, 355, 710, 923, 1051, 1420, 1846, 2102, 3692, 4204, 4615, 5255, 9230, 10510, 13663, 18460, 21020, 27326, 54652, 68315, 74621, 136630, 149242, 273260, 298484, 373105, 746210, 970073, 1492420, 1940146, 3880292, 4850365, 9700730, 19401460]

約数ペア:

[(1, 19401460), (2, 9700730), (4, 4850365), (5, 3880292), (10, 1940146), (13, 1492420), (20, 970073), (26, 746210), (52, 373105), (65, 298484), (71, 273260), (130, 149242), (142, 136630), (260, 74621), (284, 68315), (355, 54652), (710, 27326), (923, 21020), (1051, 18460), (1420, 13663), (1846, 10510), (2102, 9230), (3692, 5255), (4204, 4615)]