51381225

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1$

素因数の和:160

約数の個数: 144

約数和(自身を含む): 118385280

約数和(自身を除く): 67004055

約数列:

[1, 3, 5, 7, 9, 15, 17, 19, 21, 25, 35, 45, 51, 57, 63, 75, 85, 95, 101, 105, 119, 133, 153, 171, 175, 225, 255, 285, 303, 315, 323, 357, 399, 425, 475, 505, 525, 595, 665, 707, 765, 855, 909, 969, 1071, 1197, 1275, 1425, 1515, 1575, 1615, 1717, 1785, 1919, 1995, 2121, 2261, 2525, 2907, 2975, 3325, 3535, 3825, 4275, 4545, 4845, 5151, 5355, 5757, 5985, 6363, 6783, 7575, 8075, 8585, 8925, 9595, 9975, 10605, 11305, 12019, 13433, 14535, 15453, 17271, 17675, 20349, 22725, 24225, 25755, 26775, 28785, 29925, 31815, 32623, 33915, 36057, 40299, 42925, 47975, 53025, 56525, 60095, 67165, 72675, 77265, 86355, 97869, 101745, 108171, 120897, 128775, 143925, 159075, 163115, 169575, 180285, 201495, 228361, 293607, 300475, 335825, 386325, 431775, 489345, 508725, 540855, 604485, 685083, 815575, 901425, 1007475, 1141805, 1468035, 2055249, 2446725, 2704275, 3022425, 3425415, 5709025, 7340175, 10276245, 17127075, 51381225]

約数ペア:

[(1, 51381225), (3, 17127075), (5, 10276245), (7, 7340175), (9, 5709025), (15, 3425415), (17, 3022425), (19, 2704275), (21, 2446725), (25, 2055249), (35, 1468035), (45, 1141805), (51, 1007475), (57, 901425), (63, 815575), (75, 685083), (85, 604485), (95, 540855), (101, 508725), (105, 489345), (119, 431775), (133, 386325), (153, 335825), (171, 300475), (175, 293607), (225, 228361), (255, 201495), (285, 180285), (303, 169575), (315, 163115), (323, 159075), (357, 143925), (399, 128775), (425, 120897), (475, 108171), (505, 101745), (525, 97869), (595, 86355), (665, 77265), (707, 72675), (765, 67165), (855, 60095), (909, 56525), (969, 53025), (1071, 47975), (1197, 42925), (1275, 40299), (1425, 36057), (1515, 33915), (1575, 32623), (1615, 31815), (1717, 29925), (1785, 28785), (1919, 26775), (1995, 25755), (2121, 24225), (2261, 22725), (2525, 20349), (2907, 17675), (2975, 17271), (3325, 15453), (3535, 14535), (3825, 13433), (4275, 12019), (4545, 11305), (4845, 10605), (5151, 9975), (5355, 9595), (5757, 8925), (5985, 8585), (6363, 8075), (6783, 7575)]