28838260

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{2789}}^1$

素因数の和:2856

約数の個数: 48

約数和(自身を含む): 67495680

約数和(自身を除く): 38657420

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 47, 55, 94, 110, 188, 220, 235, 470, 517, 940, 1034, 2068, 2585, 2789, 5170, 5578, 10340, 11156, 13945, 27890, 30679, 55780, 61358, 122716, 131083, 153395, 262166, 306790, 524332, 613580, 655415, 1310830, 1441913, 2621660, 2883826, 5767652, 7209565, 14419130, 28838260]

約数ペア:

[(1, 28838260), (2, 14419130), (4, 7209565), (5, 5767652), (10, 2883826), (11, 2621660), (20, 1441913), (22, 1310830), (44, 655415), (47, 613580), (55, 524332), (94, 306790), (110, 262166), (188, 153395), (220, 131083), (235, 122716), (470, 61358), (517, 55780), (940, 30679), (1034, 27890), (2068, 13945), (2585, 11156), (2789, 10340), (5170, 5578)]