20161298768

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{763223}}^1$

素因数の和:763371

約数の個数: 40

約数和(自身を含む): 42398619648

約数和(自身を除く): 22237320880

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 127, 208, 254, 508, 1016, 1651, 2032, 3302, 6604, 13208, 26416, 763223, 1526446, 3052892, 6105784, 9921899, 12211568, 19843798, 39687596, 79375192, 96929321, 158750384, 193858642, 387717284, 775434568, 1260081173, 1550869136, 2520162346, 5040324692, 10080649384, 20161298768]

約数ペア:

[(1, 20161298768), (2, 10080649384), (4, 5040324692), (8, 2520162346), (13, 1550869136), (16, 1260081173), (26, 775434568), (52, 387717284), (104, 193858642), (127, 158750384), (208, 96929321), (254, 79375192), (508, 39687596), (1016, 19843798), (1651, 12211568), (2032, 9921899), (3302, 6105784), (6604, 3052892), (13208, 1526446), (26416, 763223)]