720334640

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{293}}^1\times {\mathrm{389}}^1$

素因数の和:774

約数の個数: 80

約数和(自身を含む): 1706140800

約数和(自身を除く): 985806160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 293, 316, 389, 395, 586, 632, 778, 790, 1172, 1264, 1465, 1556, 1580, 1945, 2344, 2930, 3112, 3160, 3890, 4688, 5860, 6224, 6320, 7780, 11720, 15560, 23147, 23440, 30731, 31120, 46294, 61462, 92588, 113977, 115735, 122924, 153655, 185176, 227954, 231470, 245848, 307310, 370352, 455908, 462940, 491696, 569885, 614620, 911816, 925880, 1139770, 1229240, 1823632, 1851760, 2279540, 2458480, 4559080, 9004183, 9118160, 18008366, 36016732, 45020915, 72033464, 90041830, 144066928, 180083660, 360167320, 720334640]

約数ペア:

[(1, 720334640), (2, 360167320), (4, 180083660), (5, 144066928), (8, 90041830), (10, 72033464), (16, 45020915), (20, 36016732), (40, 18008366), (79, 9118160), (80, 9004183), (158, 4559080), (293, 2458480), (316, 2279540), (389, 1851760), (395, 1823632), (586, 1229240), (632, 1139770), (778, 925880), (790, 911816), (1172, 614620), (1264, 569885), (1465, 491696), (1556, 462940), (1580, 455908), (1945, 370352), (2344, 307310), (2930, 245848), (3112, 231470), (3160, 227954), (3890, 185176), (4688, 153655), (5860, 122924), (6224, 115735), (6320, 113977), (7780, 92588), (11720, 61462), (15560, 46294), (23147, 31120), (23440, 30731)]