127890256

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{181}}^1$

素因数の和:324

約数の個数: 80

約数和(自身を含む): 278037760

約数和(自身を除く): 150147504

約数列:

[1, 2, 4, 8, 13, 16, 26, 43, 52, 79, 86, 104, 158, 172, 181, 208, 316, 344, 362, 559, 632, 688, 724, 1027, 1118, 1264, 1448, 2054, 2236, 2353, 2896, 3397, 4108, 4472, 4706, 6794, 7783, 8216, 8944, 9412, 13588, 14299, 15566, 16432, 18824, 27176, 28598, 31132, 37648, 44161, 54352, 57196, 62264, 88322, 101179, 114392, 124528, 176644, 185887, 202358, 228784, 353288, 371774, 404716, 614857, 706576, 743548, 809432, 1229714, 1487096, 1618864, 2459428, 2974192, 4918856, 7993141, 9837712, 15986282, 31972564, 63945128, 127890256]

約数ペア:

[(1, 127890256), (2, 63945128), (4, 31972564), (8, 15986282), (13, 9837712), (16, 7993141), (26, 4918856), (43, 2974192), (52, 2459428), (79, 1618864), (86, 1487096), (104, 1229714), (158, 809432), (172, 743548), (181, 706576), (208, 614857), (316, 404716), (344, 371774), (362, 353288), (559, 228784), (632, 202358), (688, 185887), (724, 176644), (1027, 124528), (1118, 114392), (1264, 101179), (1448, 88322), (2054, 62264), (2236, 57196), (2353, 54352), (2896, 44161), (3397, 37648), (4108, 31132), (4472, 28598), (4706, 27176), (6794, 18824), (7783, 16432), (8216, 15566), (8944, 14299), (9412, 13588)]