28061320

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{103}}^1\times {\mathrm{139}}^1$

素因数の和:267

約数の個数: 96

約数和(自身を含む): 74692800

約数和(自身を除く): 46631480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 103, 139, 140, 196, 206, 245, 278, 280, 392, 412, 490, 515, 556, 695, 721, 824, 973, 980, 1030, 1112, 1390, 1442, 1946, 1960, 2060, 2780, 2884, 3605, 3892, 4120, 4865, 5047, 5560, 5768, 6811, 7210, 7784, 9730, 10094, 13622, 14317, 14420, 19460, 20188, 25235, 27244, 28634, 28840, 34055, 38920, 40376, 50470, 54488, 57268, 68110, 71585, 100219, 100940, 114536, 136220, 143170, 200438, 201880, 272440, 286340, 400876, 501095, 572680, 701533, 801752, 1002190, 1403066, 2004380, 2806132, 3507665, 4008760, 5612264, 7015330, 14030660, 28061320]

約数ペア:

[(1, 28061320), (2, 14030660), (4, 7015330), (5, 5612264), (7, 4008760), (8, 3507665), (10, 2806132), (14, 2004380), (20, 1403066), (28, 1002190), (35, 801752), (40, 701533), (49, 572680), (56, 501095), (70, 400876), (98, 286340), (103, 272440), (139, 201880), (140, 200438), (196, 143170), (206, 136220), (245, 114536), (278, 100940), (280, 100219), (392, 71585), (412, 68110), (490, 57268), (515, 54488), (556, 50470), (695, 40376), (721, 38920), (824, 34055), (973, 28840), (980, 28634), (1030, 27244), (1112, 25235), (1390, 20188), (1442, 19460), (1946, 14420), (1960, 14317), (2060, 13622), (2780, 10094), (2884, 9730), (3605, 7784), (3892, 7210), (4120, 6811), (4865, 5768), (5047, 5560)]