280984914

素因数分解:

$2^1\times 3^2\times 7^3\times {\mathrm{71}}^1\times {\mathrm{641}}^1$

素因数の和:741

約数の個数: 96

約数和(自身を含む): 721094400

約数和(自身を除く): 440109486

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 63, 71, 98, 126, 142, 147, 213, 294, 343, 426, 441, 497, 639, 641, 686, 882, 994, 1029, 1278, 1282, 1491, 1923, 2058, 2982, 3087, 3479, 3846, 4473, 4487, 5769, 6174, 6958, 8946, 8974, 10437, 11538, 13461, 20874, 24353, 26922, 31311, 31409, 40383, 45511, 48706, 62622, 62818, 73059, 80766, 91022, 94227, 136533, 146118, 188454, 219177, 219863, 273066, 282681, 318577, 409599, 438354, 439726, 565362, 637154, 659589, 819198, 955731, 1319178, 1911462, 1978767, 2230039, 2867193, 3957534, 4460078, 5734386, 6690117, 13380234, 15610273, 20070351, 31220546, 40140702, 46830819, 93661638, 140492457, 280984914]

約数ペア:

[(1, 280984914), (2, 140492457), (3, 93661638), (6, 46830819), (7, 40140702), (9, 31220546), (14, 20070351), (18, 15610273), (21, 13380234), (42, 6690117), (49, 5734386), (63, 4460078), (71, 3957534), (98, 2867193), (126, 2230039), (142, 1978767), (147, 1911462), (213, 1319178), (294, 955731), (343, 819198), (426, 659589), (441, 637154), (497, 565362), (639, 439726), (641, 438354), (686, 409599), (882, 318577), (994, 282681), (1029, 273066), (1278, 219863), (1282, 219177), (1491, 188454), (1923, 146118), (2058, 136533), (2982, 94227), (3087, 91022), (3479, 80766), (3846, 73059), (4473, 62818), (4487, 62622), (5769, 48706), (6174, 45511), (6958, 40383), (8946, 31409), (8974, 31311), (10437, 26922), (11538, 24353), (13461, 20874)]