18288820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{1409}}^1$

素因数の和:1488

約数の個数: 48

約数和(自身を含む): 42638400

約数和(自身を除く): 24349580

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 59, 110, 118, 220, 236, 295, 590, 649, 1180, 1298, 1409, 2596, 2818, 3245, 5636, 6490, 7045, 12980, 14090, 15499, 28180, 30998, 61996, 77495, 83131, 154990, 166262, 309980, 332524, 415655, 831310, 914441, 1662620, 1828882, 3657764, 4572205, 9144410, 18288820]

約数ペア:

[(1, 18288820), (2, 9144410), (4, 4572205), (5, 3657764), (10, 1828882), (11, 1662620), (20, 914441), (22, 831310), (44, 415655), (55, 332524), (59, 309980), (110, 166262), (118, 154990), (220, 83131), (236, 77495), (295, 61996), (590, 30998), (649, 28180), (1180, 15499), (1298, 14090), (1409, 12980), (2596, 7045), (2818, 6490), (3245, 5636)]