18953480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1$

素因数の和:199

約数の個数: 128

約数和(自身を含む): 54190080

約数和(自身を除く): 35236600

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 41, 52, 56, 65, 70, 82, 91, 104, 127, 130, 140, 164, 182, 205, 254, 260, 280, 287, 328, 364, 410, 455, 508, 520, 533, 574, 635, 728, 820, 889, 910, 1016, 1066, 1148, 1270, 1435, 1640, 1651, 1778, 1820, 2132, 2296, 2540, 2665, 2870, 3302, 3556, 3640, 3731, 4264, 4445, 5080, 5207, 5330, 5740, 6604, 7112, 7462, 8255, 8890, 10414, 10660, 11480, 11557, 13208, 14924, 16510, 17780, 18655, 20828, 21320, 23114, 26035, 29848, 33020, 35560, 36449, 37310, 41656, 46228, 52070, 57785, 66040, 67691, 72898, 74620, 92456, 104140, 115570, 135382, 145796, 149240, 182245, 208280, 231140, 270764, 291592, 338455, 364490, 462280, 473837, 541528, 676910, 728980, 947674, 1353820, 1457960, 1895348, 2369185, 2707640, 3790696, 4738370, 9476740, 18953480]

約数ペア:

[(1, 18953480), (2, 9476740), (4, 4738370), (5, 3790696), (7, 2707640), (8, 2369185), (10, 1895348), (13, 1457960), (14, 1353820), (20, 947674), (26, 728980), (28, 676910), (35, 541528), (40, 473837), (41, 462280), (52, 364490), (56, 338455), (65, 291592), (70, 270764), (82, 231140), (91, 208280), (104, 182245), (127, 149240), (130, 145796), (140, 135382), (164, 115570), (182, 104140), (205, 92456), (254, 74620), (260, 72898), (280, 67691), (287, 66040), (328, 57785), (364, 52070), (410, 46228), (455, 41656), (508, 37310), (520, 36449), (533, 35560), (574, 33020), (635, 29848), (728, 26035), (820, 23114), (889, 21320), (910, 20828), (1016, 18655), (1066, 17780), (1148, 16510), (1270, 14924), (1435, 13208), (1640, 11557), (1651, 11480), (1778, 10660), (1820, 10414), (2132, 8890), (2296, 8255), (2540, 7462), (2665, 7112), (2870, 6604), (3302, 5740), (3556, 5330), (3640, 5207), (3731, 5080), (4264, 4445)]