281449818

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1\times {\mathrm{163}}^1$

素因数の和:388

約数の個数: 96

約数和(自身を含む): 679101696

約数和(自身を除く): 397651878

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 47, 78, 94, 117, 141, 157, 163, 234, 282, 314, 326, 423, 471, 489, 611, 846, 942, 978, 1222, 1413, 1467, 1833, 2041, 2119, 2826, 2934, 3666, 4082, 4238, 5499, 6123, 6357, 7379, 7661, 10998, 12246, 12714, 14758, 15322, 18369, 19071, 22137, 22983, 25591, 36738, 38142, 44274, 45966, 51182, 66411, 68949, 76773, 95927, 99593, 132822, 137898, 153546, 191854, 199186, 230319, 287781, 298779, 332683, 460638, 575562, 597558, 665366, 863343, 896337, 998049, 1202777, 1726686, 1792674, 1996098, 2405554, 2994147, 3608331, 5988294, 7216662, 10824993, 15636101, 21649986, 31272202, 46908303, 93816606, 140724909, 281449818]

約数ペア:

[(1, 281449818), (2, 140724909), (3, 93816606), (6, 46908303), (9, 31272202), (13, 21649986), (18, 15636101), (26, 10824993), (39, 7216662), (47, 5988294), (78, 3608331), (94, 2994147), (117, 2405554), (141, 1996098), (157, 1792674), (163, 1726686), (234, 1202777), (282, 998049), (314, 896337), (326, 863343), (423, 665366), (471, 597558), (489, 575562), (611, 460638), (846, 332683), (942, 298779), (978, 287781), (1222, 230319), (1413, 199186), (1467, 191854), (1833, 153546), (2041, 137898), (2119, 132822), (2826, 99593), (2934, 95927), (3666, 76773), (4082, 68949), (4238, 66411), (5499, 51182), (6123, 45966), (6357, 44274), (7379, 38142), (7661, 36738), (10998, 25591), (12246, 22983), (12714, 22137), (14758, 19071), (15322, 18369)]