19996776

素因数分解:

$2^3\times 3^2\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1$

素因数の和:259

約数の個数: 96

約数和(自身を含む): 57306600

約数和(自身を除く): 37309824

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 29, 36, 58, 61, 72, 87, 116, 122, 157, 174, 183, 232, 244, 261, 314, 348, 366, 471, 488, 522, 549, 628, 696, 732, 942, 1044, 1098, 1256, 1413, 1464, 1769, 1884, 2088, 2196, 2826, 3538, 3768, 4392, 4553, 5307, 5652, 7076, 9106, 9577, 10614, 11304, 13659, 14152, 15921, 18212, 19154, 21228, 27318, 28731, 31842, 36424, 38308, 40977, 42456, 54636, 57462, 63684, 76616, 81954, 86193, 109272, 114924, 127368, 163908, 172386, 229848, 277733, 327816, 344772, 555466, 689544, 833199, 1110932, 1666398, 2221864, 2499597, 3332796, 4999194, 6665592, 9998388, 19996776]

約数ペア:

[(1, 19996776), (2, 9998388), (3, 6665592), (4, 4999194), (6, 3332796), (8, 2499597), (9, 2221864), (12, 1666398), (18, 1110932), (24, 833199), (29, 689544), (36, 555466), (58, 344772), (61, 327816), (72, 277733), (87, 229848), (116, 172386), (122, 163908), (157, 127368), (174, 114924), (183, 109272), (232, 86193), (244, 81954), (261, 76616), (314, 63684), (348, 57462), (366, 54636), (471, 42456), (488, 40977), (522, 38308), (549, 36424), (628, 31842), (696, 28731), (732, 27318), (942, 21228), (1044, 19154), (1098, 18212), (1256, 15921), (1413, 14152), (1464, 13659), (1769, 11304), (1884, 10614), (2088, 9577), (2196, 9106), (2826, 7076), (3538, 5652), (3768, 5307), (4392, 4553)]