20783940016

素因数分解:

$2^4\times 7^1\times {\mathrm{3361}}^1\times {\mathrm{55213}}^1$

素因数の和:58589

約数の個数: 40

約数和(自身を含む): 46036108064

約数和(自身を除く): 25252168048

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 3361, 6722, 13444, 23527, 26888, 47054, 53776, 55213, 94108, 110426, 188216, 220852, 376432, 386491, 441704, 772982, 883408, 1545964, 3091928, 6183856, 185570893, 371141786, 742283572, 1298996251, 1484567144, 2597992502, 2969134288, 5195985004, 10391970008, 20783940016]

約数ペア:

[(1, 20783940016), (2, 10391970008), (4, 5195985004), (7, 2969134288), (8, 2597992502), (14, 1484567144), (16, 1298996251), (28, 742283572), (56, 371141786), (112, 185570893), (3361, 6183856), (6722, 3091928), (13444, 1545964), (23527, 883408), (26888, 772982), (47054, 441704), (53776, 386491), (55213, 376432), (94108, 220852), (110426, 188216)]