1247840

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{709}}^1$

素因数の和:735

約数の個数: 48

約数和(自身を含む): 3220560

約数和(自身を除く): 1972720

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 709, 880, 1418, 1760, 2836, 3545, 5672, 7090, 7799, 11344, 14180, 15598, 22688, 28360, 31196, 38995, 56720, 62392, 77990, 113440, 124784, 155980, 249568, 311960, 623920, 1247840]

約数ペア:

[(1, 1247840), (2, 623920), (4, 311960), (5, 249568), (8, 155980), (10, 124784), (11, 113440), (16, 77990), (20, 62392), (22, 56720), (32, 38995), (40, 31196), (44, 28360), (55, 22688), (80, 15598), (88, 14180), (110, 11344), (160, 7799), (176, 7090), (220, 5672), (352, 3545), (440, 2836), (709, 1760), (880, 1418)]