20885280

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3347}}^1$

素因数の和:3378

約数の個数: 96

約数和(自身を含む): 70870464

約数和(自身を除く): 49985184

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 65, 78, 80, 96, 104, 120, 130, 156, 160, 195, 208, 240, 260, 312, 390, 416, 480, 520, 624, 780, 1040, 1248, 1560, 2080, 3120, 3347, 6240, 6694, 10041, 13388, 16735, 20082, 26776, 33470, 40164, 43511, 50205, 53552, 66940, 80328, 87022, 100410, 107104, 130533, 133880, 160656, 174044, 200820, 217555, 261066, 267760, 321312, 348088, 401640, 435110, 522132, 535520, 652665, 696176, 803280, 870220, 1044264, 1305330, 1392352, 1606560, 1740440, 2088528, 2610660, 3480880, 4177056, 5221320, 6961760, 10442640, 20885280]

約数ペア:

[(1, 20885280), (2, 10442640), (3, 6961760), (4, 5221320), (5, 4177056), (6, 3480880), (8, 2610660), (10, 2088528), (12, 1740440), (13, 1606560), (15, 1392352), (16, 1305330), (20, 1044264), (24, 870220), (26, 803280), (30, 696176), (32, 652665), (39, 535520), (40, 522132), (48, 435110), (52, 401640), (60, 348088), (65, 321312), (78, 267760), (80, 261066), (96, 217555), (104, 200820), (120, 174044), (130, 160656), (156, 133880), (160, 130533), (195, 107104), (208, 100410), (240, 87022), (260, 80328), (312, 66940), (390, 53552), (416, 50205), (480, 43511), (520, 40164), (624, 33470), (780, 26776), (1040, 20082), (1248, 16735), (1560, 13388), (2080, 10041), (3120, 6694), (3347, 6240)]