31216185

素因数分解:

$3^4\times 5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1$

素因数の和:66

約数の個数: 180

約数和(自身を含む): 77053284

約数和(自身を除く): 45837099

約数列:

[1, 3, 5, 7, 9, 11, 13, 15, 21, 27, 33, 35, 39, 45, 49, 55, 63, 65, 77, 81, 91, 99, 105, 117, 121, 135, 143, 147, 165, 189, 195, 231, 245, 273, 297, 315, 351, 363, 385, 405, 429, 441, 455, 495, 539, 567, 585, 605, 637, 693, 715, 735, 819, 847, 891, 945, 1001, 1053, 1089, 1155, 1287, 1323, 1365, 1485, 1573, 1617, 1755, 1815, 1911, 2079, 2145, 2205, 2457, 2541, 2695, 2835, 3003, 3185, 3267, 3465, 3861, 3969, 4095, 4235, 4455, 4719, 4851, 5005, 5265, 5445, 5733, 5929, 6237, 6435, 6615, 7007, 7371, 7623, 7865, 8085, 9009, 9555, 9801, 10395, 11011, 11583, 12285, 12705, 14157, 14553, 15015, 16335, 17199, 17787, 19305, 19845, 21021, 22869, 23595, 24255, 27027, 28665, 29645, 31185, 33033, 35035, 36855, 38115, 42471, 43659, 45045, 49005, 51597, 53361, 55055, 57915, 63063, 68607, 70785, 72765, 77077, 81081, 85995, 88935, 99099, 105105, 114345, 127413, 135135, 160083, 165165, 189189, 212355, 218295, 231231, 257985, 266805, 297297, 315315, 343035, 385385, 405405, 480249, 495495, 567567, 637065, 693693, 800415, 891891, 945945, 1156155, 1486485, 2081079, 2401245, 2837835, 3468465, 4459455, 6243237, 10405395, 31216185]

約数ペア:

[(1, 31216185), (3, 10405395), (5, 6243237), (7, 4459455), (9, 3468465), (11, 2837835), (13, 2401245), (15, 2081079), (21, 1486485), (27, 1156155), (33, 945945), (35, 891891), (39, 800415), (45, 693693), (49, 637065), (55, 567567), (63, 495495), (65, 480249), (77, 405405), (81, 385385), (91, 343035), (99, 315315), (105, 297297), (117, 266805), (121, 257985), (135, 231231), (143, 218295), (147, 212355), (165, 189189), (189, 165165), (195, 160083), (231, 135135), (245, 127413), (273, 114345), (297, 105105), (315, 99099), (351, 88935), (363, 85995), (385, 81081), (405, 77077), (429, 72765), (441, 70785), (455, 68607), (495, 63063), (539, 57915), (567, 55055), (585, 53361), (605, 51597), (637, 49005), (693, 45045), (715, 43659), (735, 42471), (819, 38115), (847, 36855), (891, 35035), (945, 33033), (1001, 31185), (1053, 29645), (1089, 28665), (1155, 27027), (1287, 24255), (1323, 23595), (1365, 22869), (1485, 21021), (1573, 19845), (1617, 19305), (1755, 17787), (1815, 17199), (1911, 16335), (2079, 15015), (2145, 14553), (2205, 14157), (2457, 12705), (2541, 12285), (2695, 11583), (2835, 11011), (3003, 10395), (3185, 9801), (3267, 9555), (3465, 9009), (3861, 8085), (3969, 7865), (4095, 7623), (4235, 7371), (4455, 7007), (4719, 6615), (4851, 6435), (5005, 6237), (5265, 5929), (5445, 5733)]