215880525

素因数分解:

$3^3\times 5^2\times 7^2\times {\mathrm{61}}^1\times {\mathrm{107}}^1$

素因数の和:201

約数の個数: 144

約数和(自身を含む): 473273280

約数和(自身を除く): 257392755

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 45, 49, 61, 63, 75, 105, 107, 135, 147, 175, 183, 189, 225, 245, 305, 315, 321, 427, 441, 525, 535, 549, 675, 735, 749, 915, 945, 963, 1225, 1281, 1323, 1525, 1575, 1605, 1647, 2135, 2205, 2247, 2675, 2745, 2889, 2989, 3675, 3745, 3843, 4575, 4725, 4815, 5243, 6405, 6527, 6615, 6741, 8025, 8235, 8967, 10675, 11025, 11235, 11529, 13725, 14445, 14945, 15729, 18725, 19215, 19581, 20223, 24075, 26215, 26901, 32025, 32635, 33075, 33705, 41175, 44835, 45689, 47187, 56175, 57645, 58743, 72225, 74725, 78645, 80703, 96075, 97905, 101115, 131075, 134505, 137067, 141561, 163175, 168525, 176229, 224175, 228445, 235935, 288225, 293715, 319823, 393225, 403515, 411201, 489525, 505575, 672525, 685335, 707805, 881145, 959469, 1142225, 1179675, 1233603, 1468575, 1599115, 2017575, 2056005, 2878407, 3426675, 3539025, 4405725, 4797345, 6168015, 7995575, 8635221, 10280025, 14392035, 23986725, 30840075, 43176105, 71960175, 215880525]

約数ペア:

[(1, 215880525), (3, 71960175), (5, 43176105), (7, 30840075), (9, 23986725), (15, 14392035), (21, 10280025), (25, 8635221), (27, 7995575), (35, 6168015), (45, 4797345), (49, 4405725), (61, 3539025), (63, 3426675), (75, 2878407), (105, 2056005), (107, 2017575), (135, 1599115), (147, 1468575), (175, 1233603), (183, 1179675), (189, 1142225), (225, 959469), (245, 881145), (305, 707805), (315, 685335), (321, 672525), (427, 505575), (441, 489525), (525, 411201), (535, 403515), (549, 393225), (675, 319823), (735, 293715), (749, 288225), (915, 235935), (945, 228445), (963, 224175), (1225, 176229), (1281, 168525), (1323, 163175), (1525, 141561), (1575, 137067), (1605, 134505), (1647, 131075), (2135, 101115), (2205, 97905), (2247, 96075), (2675, 80703), (2745, 78645), (2889, 74725), (2989, 72225), (3675, 58743), (3745, 57645), (3843, 56175), (4575, 47187), (4725, 45689), (4815, 44835), (5243, 41175), (6405, 33705), (6527, 33075), (6615, 32635), (6741, 32025), (8025, 26901), (8235, 26215), (8967, 24075), (10675, 20223), (11025, 19581), (11235, 19215), (11529, 18725), (13725, 15729), (14445, 14945)]