257020144

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1213}}^1$

素因数の和:1298

約数の個数: 80

約数和(自身を含む): 569026080

約数和(自身を除く): 312005936

約数列:

[1, 2, 4, 8, 16, 17, 19, 34, 38, 41, 68, 76, 82, 136, 152, 164, 272, 304, 323, 328, 646, 656, 697, 779, 1213, 1292, 1394, 1558, 2426, 2584, 2788, 3116, 4852, 5168, 5576, 6232, 9704, 11152, 12464, 13243, 19408, 20621, 23047, 26486, 41242, 46094, 49733, 52972, 82484, 92188, 99466, 105944, 164968, 184376, 198932, 211888, 329936, 368752, 391799, 397864, 783598, 795728, 845461, 944927, 1567196, 1690922, 1889854, 3134392, 3381844, 3779708, 6268784, 6763688, 7559416, 13527376, 15118832, 16063759, 32127518, 64255036, 128510072, 257020144]

約数ペア:

[(1, 257020144), (2, 128510072), (4, 64255036), (8, 32127518), (16, 16063759), (17, 15118832), (19, 13527376), (34, 7559416), (38, 6763688), (41, 6268784), (68, 3779708), (76, 3381844), (82, 3134392), (136, 1889854), (152, 1690922), (164, 1567196), (272, 944927), (304, 845461), (323, 795728), (328, 783598), (646, 397864), (656, 391799), (697, 368752), (779, 329936), (1213, 211888), (1292, 198932), (1394, 184376), (1558, 164968), (2426, 105944), (2584, 99466), (2788, 92188), (3116, 82484), (4852, 52972), (5168, 49733), (5576, 46094), (6232, 41242), (9704, 26486), (11152, 23047), (12464, 20621), (13243, 19408)]