19676360

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{227}}^1$

素因数の和:446

約数の個数: 64

約数和(自身を含む): 48755520

約数和(自身を除く): 29079160

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 197, 220, 227, 394, 440, 454, 788, 908, 985, 1135, 1576, 1816, 1970, 2167, 2270, 2497, 3940, 4334, 4540, 4994, 7880, 8668, 9080, 9988, 10835, 12485, 17336, 19976, 21670, 24970, 43340, 44719, 49940, 86680, 89438, 99880, 178876, 223595, 357752, 447190, 491909, 894380, 983818, 1788760, 1967636, 2459545, 3935272, 4919090, 9838180, 19676360]

約数ペア:

[(1, 19676360), (2, 9838180), (4, 4919090), (5, 3935272), (8, 2459545), (10, 1967636), (11, 1788760), (20, 983818), (22, 894380), (40, 491909), (44, 447190), (55, 357752), (88, 223595), (110, 178876), (197, 99880), (220, 89438), (227, 86680), (394, 49940), (440, 44719), (454, 43340), (788, 24970), (908, 21670), (985, 19976), (1135, 17336), (1576, 12485), (1816, 10835), (1970, 9988), (2167, 9080), (2270, 8668), (2497, 7880), (3940, 4994), (4334, 4540)]