16968820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{563}}^1$

素因数の和:720

約数の個数: 48

約数和(自身を含む): 39227328

約数和(自身を除く): 22258508

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 137, 220, 274, 548, 563, 685, 1126, 1370, 1507, 2252, 2740, 2815, 3014, 5630, 6028, 6193, 7535, 11260, 12386, 15070, 24772, 30140, 30965, 61930, 77131, 123860, 154262, 308524, 385655, 771310, 848441, 1542620, 1696882, 3393764, 4242205, 8484410, 16968820]

約数ペア:

[(1, 16968820), (2, 8484410), (4, 4242205), (5, 3393764), (10, 1696882), (11, 1542620), (20, 848441), (22, 771310), (44, 385655), (55, 308524), (110, 154262), (137, 123860), (220, 77131), (274, 61930), (548, 30965), (563, 30140), (685, 24772), (1126, 15070), (1370, 12386), (1507, 11260), (2252, 7535), (2740, 6193), (2815, 6028), (3014, 5630)]