217978640

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{13037}}^1$

素因数の和:13080

約数の個数: 80

約数和(自身を含む): 582016320

約数和(自身を除く): 364037680

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 38, 40, 44, 55, 76, 80, 88, 95, 110, 152, 176, 190, 209, 220, 304, 380, 418, 440, 760, 836, 880, 1045, 1520, 1672, 2090, 3344, 4180, 8360, 13037, 16720, 26074, 52148, 65185, 104296, 130370, 143407, 208592, 247703, 260740, 286814, 495406, 521480, 573628, 717035, 990812, 1042960, 1147256, 1238515, 1434070, 1981624, 2294512, 2477030, 2724733, 2868140, 3963248, 4954060, 5449466, 5736280, 9908120, 10898932, 11472560, 13623665, 19816240, 21797864, 27247330, 43595728, 54494660, 108989320, 217978640]

約数ペア:

[(1, 217978640), (2, 108989320), (4, 54494660), (5, 43595728), (8, 27247330), (10, 21797864), (11, 19816240), (16, 13623665), (19, 11472560), (20, 10898932), (22, 9908120), (38, 5736280), (40, 5449466), (44, 4954060), (55, 3963248), (76, 2868140), (80, 2724733), (88, 2477030), (95, 2294512), (110, 1981624), (152, 1434070), (176, 1238515), (190, 1147256), (209, 1042960), (220, 990812), (304, 717035), (380, 573628), (418, 521480), (440, 495406), (760, 286814), (836, 260740), (880, 247703), (1045, 208592), (1520, 143407), (1672, 130370), (2090, 104296), (3344, 65185), (4180, 52148), (8360, 26074), (13037, 16720)]