19865656

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{43}}^2\times {\mathrm{79}}^1$

素因数の和:188

約数の個数: 48

約数和(自身を含む): 40888800

約数和(自身を除く): 21023144

約数列:

[1, 2, 4, 8, 17, 34, 43, 68, 79, 86, 136, 158, 172, 316, 344, 632, 731, 1343, 1462, 1849, 2686, 2924, 3397, 3698, 5372, 5848, 6794, 7396, 10744, 13588, 14792, 27176, 31433, 57749, 62866, 115498, 125732, 146071, 230996, 251464, 292142, 461992, 584284, 1168568, 2483207, 4966414, 9932828, 19865656]

約数ペア:

[(1, 19865656), (2, 9932828), (4, 4966414), (8, 2483207), (17, 1168568), (34, 584284), (43, 461992), (68, 292142), (79, 251464), (86, 230996), (136, 146071), (158, 125732), (172, 115498), (316, 62866), (344, 57749), (632, 31433), (731, 27176), (1343, 14792), (1462, 13588), (1849, 10744), (2686, 7396), (2924, 6794), (3397, 5848), (3698, 5372)]