68620720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{677}}^1$

素因数の和:878

約数の個数: 80

約数和(自身を含む): 183613248

約数和(自身を除く): 114992528

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 181, 280, 362, 560, 677, 724, 905, 1267, 1354, 1448, 1810, 2534, 2708, 2896, 3385, 3620, 4739, 5068, 5416, 6335, 6770, 7240, 9478, 10136, 10832, 12670, 13540, 14480, 18956, 20272, 23695, 25340, 27080, 37912, 47390, 50680, 54160, 75824, 94780, 101360, 122537, 189560, 245074, 379120, 490148, 612685, 857759, 980296, 1225370, 1715518, 1960592, 2450740, 3431036, 4288795, 4901480, 6862072, 8577590, 9802960, 13724144, 17155180, 34310360, 68620720]

約数ペア:

[(1, 68620720), (2, 34310360), (4, 17155180), (5, 13724144), (7, 9802960), (8, 8577590), (10, 6862072), (14, 4901480), (16, 4288795), (20, 3431036), (28, 2450740), (35, 1960592), (40, 1715518), (56, 1225370), (70, 980296), (80, 857759), (112, 612685), (140, 490148), (181, 379120), (280, 245074), (362, 189560), (560, 122537), (677, 101360), (724, 94780), (905, 75824), (1267, 54160), (1354, 50680), (1448, 47390), (1810, 37912), (2534, 27080), (2708, 25340), (2896, 23695), (3385, 20272), (3620, 18956), (4739, 14480), (5068, 13540), (5416, 12670), (6335, 10832), (6770, 10136), (7240, 9478)]