66543280

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{10529}}^1$

素因数の和:10621

約数の個数: 40

約数和(自身を含む): 156686400

約数和(自身を除く): 90143120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 3160, 6320, 10529, 21058, 42116, 52645, 84232, 105290, 168464, 210580, 421160, 831791, 842320, 1663582, 3327164, 4158955, 6654328, 8317910, 13308656, 16635820, 33271640, 66543280]

約数ペア:

[(1, 66543280), (2, 33271640), (4, 16635820), (5, 13308656), (8, 8317910), (10, 6654328), (16, 4158955), (20, 3327164), (40, 1663582), (79, 842320), (80, 831791), (158, 421160), (316, 210580), (395, 168464), (632, 105290), (790, 84232), (1264, 52645), (1580, 42116), (3160, 21058), (6320, 10529)]