81820935

素因数分解:

$3^4\times 5^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:88

約数の個数: 160

約数和(自身を含む): 185856000

約数和(自身を除く): 104035065

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 27, 31, 35, 45, 49, 57, 63, 81, 93, 95, 105, 133, 135, 147, 155, 171, 189, 217, 245, 279, 285, 315, 343, 399, 405, 441, 465, 513, 567, 589, 651, 665, 735, 837, 855, 931, 945, 1029, 1085, 1197, 1323, 1395, 1519, 1539, 1715, 1767, 1953, 1995, 2205, 2511, 2565, 2793, 2835, 2945, 3087, 3255, 3591, 3969, 4123, 4185, 4557, 4655, 5145, 5301, 5859, 5985, 6517, 6615, 7595, 7695, 8379, 8835, 9261, 9765, 10633, 10773, 12369, 12555, 13671, 13965, 15435, 15903, 17577, 17955, 19551, 19845, 20615, 22785, 25137, 26505, 27783, 28861, 29295, 31899, 32585, 37107, 41013, 41895, 46305, 47709, 53165, 53865, 58653, 61845, 68355, 75411, 79515, 86583, 87885, 95697, 97755, 111321, 123039, 125685, 138915, 144305, 159495, 175959, 185535, 202027, 205065, 238545, 259749, 287091, 293265, 333963, 377055, 432915, 478485, 527877, 556605, 606081, 615195, 779247, 861273, 879795, 1010135, 1298745, 1435455, 1669815, 1818243, 2337741, 2639385, 3030405, 3896235, 4306365, 5454729, 9091215, 11688705, 16364187, 27273645, 81820935]

約数ペア:

[(1, 81820935), (3, 27273645), (5, 16364187), (7, 11688705), (9, 9091215), (15, 5454729), (19, 4306365), (21, 3896235), (27, 3030405), (31, 2639385), (35, 2337741), (45, 1818243), (49, 1669815), (57, 1435455), (63, 1298745), (81, 1010135), (93, 879795), (95, 861273), (105, 779247), (133, 615195), (135, 606081), (147, 556605), (155, 527877), (171, 478485), (189, 432915), (217, 377055), (245, 333963), (279, 293265), (285, 287091), (315, 259749), (343, 238545), (399, 205065), (405, 202027), (441, 185535), (465, 175959), (513, 159495), (567, 144305), (589, 138915), (651, 125685), (665, 123039), (735, 111321), (837, 97755), (855, 95697), (931, 87885), (945, 86583), (1029, 79515), (1085, 75411), (1197, 68355), (1323, 61845), (1395, 58653), (1519, 53865), (1539, 53165), (1715, 47709), (1767, 46305), (1953, 41895), (1995, 41013), (2205, 37107), (2511, 32585), (2565, 31899), (2793, 29295), (2835, 28861), (2945, 27783), (3087, 26505), (3255, 25137), (3591, 22785), (3969, 20615), (4123, 19845), (4185, 19551), (4557, 17955), (4655, 17577), (5145, 15903), (5301, 15435), (5859, 13965), (5985, 13671), (6517, 12555), (6615, 12369), (7595, 10773), (7695, 10633), (8379, 9765), (8835, 9261)]