27121820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:171

約数の個数: 96

約数和(自身を含む): 65995776

約数和(自身を除く): 38873956

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 47, 55, 61, 86, 94, 110, 122, 172, 188, 215, 220, 235, 244, 305, 430, 470, 473, 517, 610, 671, 860, 940, 946, 1034, 1220, 1342, 1892, 2021, 2068, 2365, 2585, 2623, 2684, 2867, 3355, 4042, 4730, 5170, 5246, 5734, 6710, 8084, 9460, 10105, 10340, 10492, 11468, 13115, 13420, 14335, 20210, 22231, 26230, 28670, 28853, 31537, 40420, 44462, 52460, 57340, 57706, 63074, 88924, 111155, 115412, 123281, 126148, 144265, 157685, 222310, 246562, 288530, 315370, 444620, 493124, 577060, 616405, 630740, 1232810, 1356091, 2465620, 2712182, 5424364, 6780455, 13560910, 27121820]

約数ペア:

[(1, 27121820), (2, 13560910), (4, 6780455), (5, 5424364), (10, 2712182), (11, 2465620), (20, 1356091), (22, 1232810), (43, 630740), (44, 616405), (47, 577060), (55, 493124), (61, 444620), (86, 315370), (94, 288530), (110, 246562), (122, 222310), (172, 157685), (188, 144265), (215, 126148), (220, 123281), (235, 115412), (244, 111155), (305, 88924), (430, 63074), (470, 57706), (473, 57340), (517, 52460), (610, 44462), (671, 40420), (860, 31537), (940, 28853), (946, 28670), (1034, 26230), (1220, 22231), (1342, 20210), (1892, 14335), (2021, 13420), (2068, 13115), (2365, 11468), (2585, 10492), (2623, 10340), (2684, 10105), (2867, 9460), (3355, 8084), (4042, 6710), (4730, 5734), (5170, 5246)]