1279630664

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{139}}^1$

素因数の和:343

約数の個数: 128

約数和(自身を含む): 2844979200

約数和(自身を除く): 1565348536

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 41, 52, 68, 82, 104, 127, 136, 139, 164, 221, 254, 278, 328, 442, 508, 533, 556, 697, 884, 1016, 1066, 1112, 1394, 1651, 1768, 1807, 2132, 2159, 2363, 2788, 3302, 3614, 4264, 4318, 4726, 5207, 5576, 5699, 6604, 7228, 8636, 9061, 9452, 10414, 11398, 13208, 14456, 17272, 17653, 18122, 18904, 20828, 22796, 28067, 30719, 35306, 36244, 41656, 45592, 56134, 61438, 67691, 70612, 72488, 74087, 88519, 96883, 112268, 122876, 135382, 141224, 148174, 177038, 193766, 224536, 229489, 245752, 270764, 296348, 300101, 354076, 387532, 458978, 541528, 592696, 600202, 708152, 723773, 775064, 917956, 1150747, 1200404, 1259479, 1447546, 1835912, 2301494, 2400808, 2518958, 2895092, 3901313, 4602988, 5037916, 5790184, 7802626, 9205976, 9409049, 10075832, 12304141, 15605252, 18818098, 24608282, 31210504, 37636196, 49216564, 75272392, 98433128, 159953833, 319907666, 639815332, 1279630664]

約数ペア:

[(1, 1279630664), (2, 639815332), (4, 319907666), (8, 159953833), (13, 98433128), (17, 75272392), (26, 49216564), (34, 37636196), (41, 31210504), (52, 24608282), (68, 18818098), (82, 15605252), (104, 12304141), (127, 10075832), (136, 9409049), (139, 9205976), (164, 7802626), (221, 5790184), (254, 5037916), (278, 4602988), (328, 3901313), (442, 2895092), (508, 2518958), (533, 2400808), (556, 2301494), (697, 1835912), (884, 1447546), (1016, 1259479), (1066, 1200404), (1112, 1150747), (1394, 917956), (1651, 775064), (1768, 723773), (1807, 708152), (2132, 600202), (2159, 592696), (2363, 541528), (2788, 458978), (3302, 387532), (3614, 354076), (4264, 300101), (4318, 296348), (4726, 270764), (5207, 245752), (5576, 229489), (5699, 224536), (6604, 193766), (7228, 177038), (8636, 148174), (9061, 141224), (9452, 135382), (10414, 122876), (11398, 112268), (13208, 96883), (14456, 88519), (17272, 74087), (17653, 72488), (18122, 70612), (18904, 67691), (20828, 61438), (22796, 56134), (28067, 45592), (30719, 41656), (35306, 36244)]