2878785

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1$

素因数の和:87

約数の個数: 96

約数和(自身を含む): 6639360

約数和(自身を除く): 3760575

約数列:

[1, 3, 5, 7, 9, 13, 15, 19, 21, 35, 37, 39, 45, 57, 63, 65, 91, 95, 105, 111, 117, 133, 171, 185, 195, 247, 259, 273, 285, 315, 333, 399, 455, 481, 555, 585, 665, 703, 741, 777, 819, 855, 1197, 1235, 1295, 1365, 1443, 1665, 1729, 1995, 2109, 2223, 2331, 2405, 3367, 3515, 3705, 3885, 4095, 4329, 4921, 5187, 5985, 6327, 7215, 8645, 9139, 10101, 10545, 11115, 11655, 14763, 15561, 16835, 21645, 24605, 25935, 27417, 30303, 31635, 44289, 45695, 50505, 63973, 73815, 77805, 82251, 137085, 151515, 191919, 221445, 319865, 411255, 575757, 959595, 2878785]

約数ペア:

[(1, 2878785), (3, 959595), (5, 575757), (7, 411255), (9, 319865), (13, 221445), (15, 191919), (19, 151515), (21, 137085), (35, 82251), (37, 77805), (39, 73815), (45, 63973), (57, 50505), (63, 45695), (65, 44289), (91, 31635), (95, 30303), (105, 27417), (111, 25935), (117, 24605), (133, 21645), (171, 16835), (185, 15561), (195, 14763), (247, 11655), (259, 11115), (273, 10545), (285, 10101), (315, 9139), (333, 8645), (399, 7215), (455, 6327), (481, 5985), (555, 5187), (585, 4921), (665, 4329), (703, 4095), (741, 3885), (777, 3705), (819, 3515), (855, 3367), (1197, 2405), (1235, 2331), (1295, 2223), (1365, 2109), (1443, 1995), (1665, 1729)]