647685129

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:215

約数の個数: 128

約数和(自身を含む): 1199923200

約数和(自身を除く): 552238071

約数列:

[1, 3, 7, 13, 19, 21, 23, 39, 57, 61, 69, 89, 91, 133, 161, 183, 247, 267, 273, 299, 399, 427, 437, 483, 623, 741, 793, 897, 1157, 1159, 1281, 1311, 1403, 1691, 1729, 1869, 2047, 2093, 2379, 3059, 3471, 3477, 4209, 5073, 5187, 5429, 5551, 5681, 6141, 6279, 8099, 8113, 9177, 9821, 11837, 14329, 15067, 16287, 16653, 17043, 18239, 21983, 24297, 24339, 26611, 26657, 29463, 35511, 38003, 38893, 39767, 42987, 45201, 54717, 65949, 70577, 79833, 79971, 103151, 105469, 114009, 116679, 119301, 124867, 127673, 153881, 186277, 186599, 211731, 272251, 309453, 316407, 346541, 374601, 383019, 461643, 494039, 505609, 558831, 559797, 722057, 816753, 874069, 1039623, 1340963, 1482117, 1516827, 1623271, 2166171, 2372473, 2425787, 2622207, 3539263, 4022889, 4869813, 7117419, 7277361, 9386741, 10617789, 11362897, 16607311, 28160223, 30842149, 34088691, 49821933, 92526447, 215895043, 647685129]

約数ペア:

[(1, 647685129), (3, 215895043), (7, 92526447), (13, 49821933), (19, 34088691), (21, 30842149), (23, 28160223), (39, 16607311), (57, 11362897), (61, 10617789), (69, 9386741), (89, 7277361), (91, 7117419), (133, 4869813), (161, 4022889), (183, 3539263), (247, 2622207), (267, 2425787), (273, 2372473), (299, 2166171), (399, 1623271), (427, 1516827), (437, 1482117), (483, 1340963), (623, 1039623), (741, 874069), (793, 816753), (897, 722057), (1157, 559797), (1159, 558831), (1281, 505609), (1311, 494039), (1403, 461643), (1691, 383019), (1729, 374601), (1869, 346541), (2047, 316407), (2093, 309453), (2379, 272251), (3059, 211731), (3471, 186599), (3477, 186277), (4209, 153881), (5073, 127673), (5187, 124867), (5429, 119301), (5551, 116679), (5681, 114009), (6141, 105469), (6279, 103151), (8099, 79971), (8113, 79833), (9177, 70577), (9821, 65949), (11837, 54717), (14329, 45201), (15067, 42987), (16287, 39767), (16653, 38893), (17043, 38003), (18239, 35511), (21983, 29463), (24297, 26657), (24339, 26611)]