28236560

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{2917}}^1$

素因数の和:2952

約数の個数: 60

約数和(自身を含む): 72185484

約数和(自身を除く): 43948924

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 121, 176, 220, 242, 440, 484, 605, 880, 968, 1210, 1936, 2420, 2917, 4840, 5834, 9680, 11668, 14585, 23336, 29170, 32087, 46672, 58340, 64174, 116680, 128348, 160435, 233360, 256696, 320870, 352957, 513392, 641740, 705914, 1283480, 1411828, 1764785, 2566960, 2823656, 3529570, 5647312, 7059140, 14118280, 28236560]

約数ペア:

[(1, 28236560), (2, 14118280), (4, 7059140), (5, 5647312), (8, 3529570), (10, 2823656), (11, 2566960), (16, 1764785), (20, 1411828), (22, 1283480), (40, 705914), (44, 641740), (55, 513392), (80, 352957), (88, 320870), (110, 256696), (121, 233360), (176, 160435), (220, 128348), (242, 116680), (440, 64174), (484, 58340), (605, 46672), (880, 32087), (968, 29170), (1210, 23336), (1936, 14585), (2420, 11668), (2917, 9680), (4840, 5834)]