281991132

素因数分解:

$2^2\times 3^4\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{479}}^1$

素因数の和:597

約数の個数: 120

約数和(自身を含む): 780595200

約数和(自身を除く): 498604068

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 27, 36, 46, 54, 69, 79, 81, 92, 108, 138, 158, 162, 207, 237, 276, 316, 324, 414, 474, 479, 621, 711, 828, 948, 958, 1242, 1422, 1437, 1817, 1863, 1916, 2133, 2484, 2844, 2874, 3634, 3726, 4266, 4311, 5451, 5748, 6399, 7268, 7452, 8532, 8622, 10902, 11017, 12798, 12933, 16353, 17244, 21804, 22034, 25596, 25866, 32706, 33051, 37841, 38799, 44068, 49059, 51732, 65412, 66102, 75682, 77598, 98118, 99153, 113523, 132204, 147177, 151364, 155196, 196236, 198306, 227046, 294354, 297459, 340569, 396612, 454092, 588708, 594918, 681138, 870343, 892377, 1021707, 1189836, 1362276, 1740686, 1784754, 2043414, 2611029, 3065121, 3481372, 3569508, 4086828, 5222058, 6130242, 7833087, 10444116, 12260484, 15666174, 23499261, 31332348, 46998522, 70497783, 93997044, 140995566, 281991132]

約数ペア:

[(1, 281991132), (2, 140995566), (3, 93997044), (4, 70497783), (6, 46998522), (9, 31332348), (12, 23499261), (18, 15666174), (23, 12260484), (27, 10444116), (36, 7833087), (46, 6130242), (54, 5222058), (69, 4086828), (79, 3569508), (81, 3481372), (92, 3065121), (108, 2611029), (138, 2043414), (158, 1784754), (162, 1740686), (207, 1362276), (237, 1189836), (276, 1021707), (316, 892377), (324, 870343), (414, 681138), (474, 594918), (479, 588708), (621, 454092), (711, 396612), (828, 340569), (948, 297459), (958, 294354), (1242, 227046), (1422, 198306), (1437, 196236), (1817, 155196), (1863, 151364), (1916, 147177), (2133, 132204), (2484, 113523), (2844, 99153), (2874, 98118), (3634, 77598), (3726, 75682), (4266, 66102), (4311, 65412), (5451, 51732), (5748, 49059), (6399, 44068), (7268, 38799), (7452, 37841), (8532, 33051), (8622, 32706), (10902, 25866), (11017, 25596), (12798, 22034), (12933, 21804), (16353, 17244)]