838128980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{317}}^1\times {\mathrm{10169}}^1$

素因数の和:10508

約数の個数: 48

約数和(自身を含む): 1901627280

約数和(自身を除く): 1063498300

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 317, 634, 1268, 1585, 3170, 4121, 6340, 8242, 10169, 16484, 20338, 20605, 40676, 41210, 50845, 82420, 101690, 132197, 203380, 264394, 528788, 660985, 1321970, 2643940, 3223573, 6447146, 12894292, 16117865, 32235730, 41906449, 64471460, 83812898, 167625796, 209532245, 419064490, 838128980]

約数ペア:

[(1, 838128980), (2, 419064490), (4, 209532245), (5, 167625796), (10, 83812898), (13, 64471460), (20, 41906449), (26, 32235730), (52, 16117865), (65, 12894292), (130, 6447146), (260, 3223573), (317, 2643940), (634, 1321970), (1268, 660985), (1585, 528788), (3170, 264394), (4121, 203380), (6340, 132197), (8242, 101690), (10169, 82420), (16484, 50845), (20338, 41210), (20605, 40676)]