19563280

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:125

約数の個数: 120

約数和(自身を含む): 52246656

約数和(自身を除く): 32683376

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 43, 44, 47, 55, 80, 86, 88, 94, 110, 121, 172, 176, 188, 215, 220, 235, 242, 344, 376, 430, 440, 470, 473, 484, 517, 605, 688, 752, 860, 880, 940, 946, 968, 1034, 1210, 1720, 1880, 1892, 1936, 2021, 2068, 2365, 2420, 2585, 3440, 3760, 3784, 4042, 4136, 4730, 4840, 5170, 5203, 5687, 7568, 8084, 8272, 9460, 9680, 10105, 10340, 10406, 11374, 16168, 18920, 20210, 20680, 20812, 22231, 22748, 26015, 28435, 32336, 37840, 40420, 41360, 41624, 44462, 45496, 52030, 56870, 80840, 83248, 88924, 90992, 104060, 111155, 113740, 161680, 177848, 208120, 222310, 227480, 244541, 355696, 416240, 444620, 454960, 489082, 889240, 978164, 1222705, 1778480, 1956328, 2445410, 3912656, 4890820, 9781640, 19563280]

約数ペア:

[(1, 19563280), (2, 9781640), (4, 4890820), (5, 3912656), (8, 2445410), (10, 1956328), (11, 1778480), (16, 1222705), (20, 978164), (22, 889240), (40, 489082), (43, 454960), (44, 444620), (47, 416240), (55, 355696), (80, 244541), (86, 227480), (88, 222310), (94, 208120), (110, 177848), (121, 161680), (172, 113740), (176, 111155), (188, 104060), (215, 90992), (220, 88924), (235, 83248), (242, 80840), (344, 56870), (376, 52030), (430, 45496), (440, 44462), (470, 41624), (473, 41360), (484, 40420), (517, 37840), (605, 32336), (688, 28435), (752, 26015), (860, 22748), (880, 22231), (940, 20812), (946, 20680), (968, 20210), (1034, 18920), (1210, 16168), (1720, 11374), (1880, 10406), (1892, 10340), (1936, 10105), (2021, 9680), (2068, 9460), (2365, 8272), (2420, 8084), (2585, 7568), (3440, 5687), (3760, 5203), (3784, 5170), (4042, 4840), (4136, 4730)]