215996826

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{317}}^1$

素因数の和:523

約数の個数: 64

約数和(自身を含む): 470131200

約数和(自身を除く): 254134374

約数列:

[1, 2, 3, 6, 19, 38, 43, 57, 86, 114, 129, 139, 258, 278, 317, 417, 634, 817, 834, 951, 1634, 1902, 2451, 2641, 4902, 5282, 5977, 6023, 7923, 11954, 12046, 13631, 15846, 17931, 18069, 27262, 35862, 36138, 40893, 44063, 81786, 88126, 113563, 132189, 227126, 258989, 264378, 340689, 517978, 681378, 776967, 837197, 1553934, 1674394, 1894709, 2511591, 3789418, 5023182, 5684127, 11368254, 35999471, 71998942, 107998413, 215996826]

約数ペア:

[(1, 215996826), (2, 107998413), (3, 71998942), (6, 35999471), (19, 11368254), (38, 5684127), (43, 5023182), (57, 3789418), (86, 2511591), (114, 1894709), (129, 1674394), (139, 1553934), (258, 837197), (278, 776967), (317, 681378), (417, 517978), (634, 340689), (817, 264378), (834, 258989), (951, 227126), (1634, 132189), (1902, 113563), (2451, 88126), (2641, 81786), (4902, 44063), (5282, 40893), (5977, 36138), (6023, 35862), (7923, 27262), (11954, 18069), (12046, 17931), (13631, 15846)]