18496280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{331}}^1$

素因数の和:480

約数の個数: 64

約数和(自身を含む): 45895680

約数和(自身を除く): 27399400

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 127, 220, 254, 331, 440, 508, 635, 662, 1016, 1270, 1324, 1397, 1655, 2540, 2648, 2794, 3310, 3641, 5080, 5588, 6620, 6985, 7282, 11176, 13240, 13970, 14564, 18205, 27940, 29128, 36410, 42037, 55880, 72820, 84074, 145640, 168148, 210185, 336296, 420370, 462407, 840740, 924814, 1681480, 1849628, 2312035, 3699256, 4624070, 9248140, 18496280]

約数ペア:

[(1, 18496280), (2, 9248140), (4, 4624070), (5, 3699256), (8, 2312035), (10, 1849628), (11, 1681480), (20, 924814), (22, 840740), (40, 462407), (44, 420370), (55, 336296), (88, 210185), (110, 168148), (127, 145640), (220, 84074), (254, 72820), (331, 55880), (440, 42037), (508, 36410), (635, 29128), (662, 27940), (1016, 18205), (1270, 14564), (1324, 13970), (1397, 13240), (1655, 11176), (2540, 7282), (2648, 6985), (2794, 6620), (3310, 5588), (3641, 5080)]