19672672

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{29}}^2\times {\mathrm{43}}^1$

素因数の和:128

約数の個数: 72

約数和(自身を含む): 43459416

約数和(自身を除く): 23786744

約数列:

[1, 2, 4, 8, 16, 17, 29, 32, 34, 43, 58, 68, 86, 116, 136, 172, 232, 272, 344, 464, 493, 544, 688, 731, 841, 928, 986, 1247, 1376, 1462, 1682, 1972, 2494, 2924, 3364, 3944, 4988, 5848, 6728, 7888, 9976, 11696, 13456, 14297, 15776, 19952, 21199, 23392, 26912, 28594, 36163, 39904, 42398, 57188, 72326, 84796, 114376, 144652, 169592, 228752, 289304, 339184, 457504, 578608, 614771, 678368, 1157216, 1229542, 2459084, 4918168, 9836336, 19672672]

約数ペア:

[(1, 19672672), (2, 9836336), (4, 4918168), (8, 2459084), (16, 1229542), (17, 1157216), (29, 678368), (32, 614771), (34, 578608), (43, 457504), (58, 339184), (68, 289304), (86, 228752), (116, 169592), (136, 144652), (172, 114376), (232, 84796), (272, 72326), (344, 57188), (464, 42398), (493, 39904), (544, 36163), (688, 28594), (731, 26912), (841, 23392), (928, 21199), (986, 19952), (1247, 15776), (1376, 14297), (1462, 13456), (1682, 11696), (1972, 9976), (2494, 7888), (2924, 6728), (3364, 5848), (3944, 4988)]