81939312

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{13}}^3\times {\mathrm{37}}^1$

素因数の和:97

約数の個数: 240

約数和(自身を含む): 291578560

約数和(自身を除く): 209639248

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 16, 18, 21, 24, 26, 28, 36, 37, 39, 42, 48, 52, 56, 63, 72, 74, 78, 84, 91, 104, 111, 112, 117, 126, 144, 148, 156, 168, 169, 182, 208, 222, 234, 252, 259, 273, 296, 312, 333, 336, 338, 364, 444, 468, 481, 504, 507, 518, 546, 592, 624, 666, 676, 728, 777, 819, 888, 936, 962, 1008, 1014, 1036, 1092, 1183, 1332, 1352, 1443, 1456, 1521, 1554, 1638, 1776, 1872, 1924, 2028, 2072, 2184, 2197, 2331, 2366, 2664, 2704, 2886, 3042, 3108, 3276, 3367, 3549, 3848, 4056, 4144, 4329, 4368, 4394, 4662, 4732, 5328, 5772, 6084, 6216, 6253, 6552, 6591, 6734, 7098, 7696, 8112, 8658, 8788, 9324, 9464, 10101, 10647, 11544, 12168, 12432, 12506, 13104, 13182, 13468, 14196, 15379, 17316, 17576, 18648, 18759, 18928, 19773, 20202, 21294, 23088, 24336, 25012, 26364, 26936, 28392, 30303, 30758, 34632, 35152, 37296, 37518, 39546, 40404, 42588, 43771, 46137, 50024, 52728, 53872, 56277, 56784, 60606, 61516, 69264, 75036, 79092, 80808, 81289, 85176, 87542, 92274, 100048, 105456, 112554, 121212, 123032, 131313, 138411, 150072, 158184, 161616, 162578, 170352, 175084, 184548, 225108, 242424, 243867, 246064, 262626, 276822, 300144, 316368, 325156, 350168, 369096, 393939, 450216, 484848, 487734, 525252, 553644, 569023, 650312, 700336, 731601, 738192, 787878, 900432, 975468, 1050504, 1107288, 1138046, 1300624, 1463202, 1575756, 1707069, 1950936, 2101008, 2214576, 2276092, 2926404, 3151512, 3414138, 3901872, 4552184, 5121207, 5852808, 6303024, 6828276, 9104368, 10242414, 11705616, 13656552, 20484828, 27313104, 40969656, 81939312]

約数ペア:

[(1, 81939312), (2, 40969656), (3, 27313104), (4, 20484828), (6, 13656552), (7, 11705616), (8, 10242414), (9, 9104368), (12, 6828276), (13, 6303024), (14, 5852808), (16, 5121207), (18, 4552184), (21, 3901872), (24, 3414138), (26, 3151512), (28, 2926404), (36, 2276092), (37, 2214576), (39, 2101008), (42, 1950936), (48, 1707069), (52, 1575756), (56, 1463202), (63, 1300624), (72, 1138046), (74, 1107288), (78, 1050504), (84, 975468), (91, 900432), (104, 787878), (111, 738192), (112, 731601), (117, 700336), (126, 650312), (144, 569023), (148, 553644), (156, 525252), (168, 487734), (169, 484848), (182, 450216), (208, 393939), (222, 369096), (234, 350168), (252, 325156), (259, 316368), (273, 300144), (296, 276822), (312, 262626), (333, 246064), (336, 243867), (338, 242424), (364, 225108), (444, 184548), (468, 175084), (481, 170352), (504, 162578), (507, 161616), (518, 158184), (546, 150072), (592, 138411), (624, 131313), (666, 123032), (676, 121212), (728, 112554), (777, 105456), (819, 100048), (888, 92274), (936, 87542), (962, 85176), (1008, 81289), (1014, 80808), (1036, 79092), (1092, 75036), (1183, 69264), (1332, 61516), (1352, 60606), (1443, 56784), (1456, 56277), (1521, 53872), (1554, 52728), (1638, 50024), (1776, 46137), (1872, 43771), (1924, 42588), (2028, 40404), (2072, 39546), (2184, 37518), (2197, 37296), (2331, 35152), (2366, 34632), (2664, 30758), (2704, 30303), (2886, 28392), (3042, 26936), (3108, 26364), (3276, 25012), (3367, 24336), (3549, 23088), (3848, 21294), (4056, 20202), (4144, 19773), (4329, 18928), (4368, 18759), (4394, 18648), (4662, 17576), (4732, 17316), (5328, 15379), (5772, 14196), (6084, 13468), (6216, 13182), (6253, 13104), (6552, 12506), (6591, 12432), (6734, 12168), (7098, 11544), (7696, 10647), (8112, 10101), (8658, 9464), (8788, 9324)]