28672820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^2\times {\mathrm{59}}^1$

素因数の和:173

約数の個数: 72

約数和(自身を含む): 68251680

約数和(自身を除く): 39578860

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 47, 55, 59, 94, 110, 118, 188, 220, 235, 236, 295, 470, 517, 590, 649, 940, 1034, 1180, 1298, 2068, 2209, 2585, 2596, 2773, 3245, 4418, 5170, 5546, 6490, 8836, 10340, 11045, 11092, 12980, 13865, 22090, 24299, 27730, 30503, 44180, 48598, 55460, 61006, 97196, 121495, 122012, 130331, 152515, 242990, 260662, 305030, 485980, 521324, 610060, 651655, 1303310, 1433641, 2606620, 2867282, 5734564, 7168205, 14336410, 28672820]

約数ペア:

[(1, 28672820), (2, 14336410), (4, 7168205), (5, 5734564), (10, 2867282), (11, 2606620), (20, 1433641), (22, 1303310), (44, 651655), (47, 610060), (55, 521324), (59, 485980), (94, 305030), (110, 260662), (118, 242990), (188, 152515), (220, 130331), (235, 122012), (236, 121495), (295, 97196), (470, 61006), (517, 55460), (590, 48598), (649, 44180), (940, 30503), (1034, 27730), (1180, 24299), (1298, 22090), (2068, 13865), (2209, 12980), (2585, 11092), (2596, 11045), (2773, 10340), (3245, 8836), (4418, 6490), (5170, 5546)]