784920320720

素因数分解:

$2^4\times 5^1\times {\mathrm{211}}^1\times {\mathrm{1801}}^1\times {\mathrm{25819}}^1$

素因数の和:27844

約数の個数: 80

約数和(自身を含む): 1834677900480

約数和(自身を除く): 1049757579760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 211, 422, 844, 1055, 1688, 1801, 2110, 3376, 3602, 4220, 7204, 8440, 9005, 14408, 16880, 18010, 25819, 28816, 36020, 51638, 72040, 103276, 129095, 144080, 206552, 258190, 380011, 413104, 516380, 760022, 1032760, 1520044, 1900055, 2065520, 3040088, 3800110, 5447809, 6080176, 7600220, 10895618, 15200440, 21791236, 27239045, 30400880, 43582472, 46500019, 54478090, 87164944, 93000038, 108956180, 186000076, 217912360, 232500095, 372000152, 435824720, 465000190, 744000304, 930000380, 1860000760, 3720001520, 9811504009, 19623008018, 39246016036, 49057520045, 78492032072, 98115040090, 156984064144, 196230080180, 392460160360, 784920320720]

約数ペア:

[(1, 784920320720), (2, 392460160360), (4, 196230080180), (5, 156984064144), (8, 98115040090), (10, 78492032072), (16, 49057520045), (20, 39246016036), (40, 19623008018), (80, 9811504009), (211, 3720001520), (422, 1860000760), (844, 930000380), (1055, 744000304), (1688, 465000190), (1801, 435824720), (2110, 372000152), (3376, 232500095), (3602, 217912360), (4220, 186000076), (7204, 108956180), (8440, 93000038), (9005, 87164944), (14408, 54478090), (16880, 46500019), (18010, 43582472), (25819, 30400880), (28816, 27239045), (36020, 21791236), (51638, 15200440), (72040, 10895618), (103276, 7600220), (129095, 6080176), (144080, 5447809), (206552, 3800110), (258190, 3040088), (380011, 2065520), (413104, 1900055), (516380, 1520044), (760022, 1032760)]