996840880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{661}}^1\times {\mathrm{2693}}^1$

素因数の和:3374

約数の個数: 80

約数和(自身を含む): 2653740864

約数和(自身を除く): 1656899984

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 661, 1322, 2644, 2693, 3305, 4627, 5288, 5386, 6610, 9254, 10576, 10772, 13220, 13465, 18508, 18851, 21544, 23135, 26440, 26930, 37016, 37702, 43088, 46270, 52880, 53860, 74032, 75404, 92540, 94255, 107720, 150808, 185080, 188510, 215440, 301616, 370160, 377020, 754040, 1508080, 1780073, 3560146, 7120292, 8900365, 12460511, 14240584, 17800730, 24921022, 28481168, 35601460, 49842044, 62302555, 71202920, 99684088, 124605110, 142405840, 199368176, 249210220, 498420440, 996840880]

約数ペア:

[(1, 996840880), (2, 498420440), (4, 249210220), (5, 199368176), (7, 142405840), (8, 124605110), (10, 99684088), (14, 71202920), (16, 62302555), (20, 49842044), (28, 35601460), (35, 28481168), (40, 24921022), (56, 17800730), (70, 14240584), (80, 12460511), (112, 8900365), (140, 7120292), (280, 3560146), (560, 1780073), (661, 1508080), (1322, 754040), (2644, 377020), (2693, 370160), (3305, 301616), (4627, 215440), (5288, 188510), (5386, 185080), (6610, 150808), (9254, 107720), (10576, 94255), (10772, 92540), (13220, 75404), (13465, 74032), (18508, 53860), (18851, 52880), (21544, 46270), (23135, 43088), (26440, 37702), (26930, 37016)]