205072816

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1\times {\mathrm{173}}^1$

素因数の和:374

約数の個数: 80

約数和(自身を含む): 444034080

約数和(自身を除く): 238961264

約数列:

[1, 2, 4, 8, 13, 16, 26, 41, 52, 82, 104, 139, 164, 173, 208, 278, 328, 346, 533, 556, 656, 692, 1066, 1112, 1384, 1807, 2132, 2224, 2249, 2768, 3614, 4264, 4498, 5699, 7093, 7228, 8528, 8996, 11398, 14186, 14456, 17992, 22796, 24047, 28372, 28912, 35984, 45592, 48094, 56744, 74087, 91184, 92209, 96188, 113488, 148174, 184418, 192376, 296348, 312611, 368836, 384752, 592696, 625222, 737672, 985927, 1185392, 1250444, 1475344, 1971854, 2500888, 3943708, 5001776, 7887416, 12817051, 15774832, 25634102, 51268204, 102536408, 205072816]

約数ペア:

[(1, 205072816), (2, 102536408), (4, 51268204), (8, 25634102), (13, 15774832), (16, 12817051), (26, 7887416), (41, 5001776), (52, 3943708), (82, 2500888), (104, 1971854), (139, 1475344), (164, 1250444), (173, 1185392), (208, 985927), (278, 737672), (328, 625222), (346, 592696), (533, 384752), (556, 368836), (656, 312611), (692, 296348), (1066, 192376), (1112, 184418), (1384, 148174), (1807, 113488), (2132, 96188), (2224, 92209), (2249, 91184), (2768, 74087), (3614, 56744), (4264, 48094), (4498, 45592), (5699, 35984), (7093, 28912), (7228, 28372), (8528, 24047), (8996, 22796), (11398, 17992), (14186, 14456)]