28359980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{11719}}^1$

素因数の和:11750

約数の個数: 36

約数和(自身を含む): 65467920

約数和(自身を除く): 37107940

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 11719, 23438, 46876, 58595, 117190, 128909, 234380, 257818, 515636, 644545, 1289090, 1417999, 2578180, 2835998, 5671996, 7089995, 14179990, 28359980]

約数ペア:

[(1, 28359980), (2, 14179990), (4, 7089995), (5, 5671996), (10, 2835998), (11, 2578180), (20, 1417999), (22, 1289090), (44, 644545), (55, 515636), (110, 257818), (121, 234380), (220, 128909), (242, 117190), (484, 58595), (605, 46876), (1210, 23438), (2420, 11719)]