20104812

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2$

素因数の和:85

約数の個数: 216

約数和(自身を含む): 69896736

約数和(自身を除く): 49791924

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 17, 18, 19, 21, 26, 28, 34, 36, 38, 39, 42, 51, 52, 57, 63, 68, 76, 78, 84, 91, 102, 114, 117, 119, 126, 133, 153, 156, 171, 182, 204, 221, 228, 234, 238, 247, 252, 266, 273, 306, 323, 342, 357, 361, 364, 399, 442, 468, 476, 494, 532, 546, 612, 646, 663, 684, 714, 722, 741, 798, 819, 884, 969, 988, 1071, 1083, 1092, 1197, 1292, 1326, 1428, 1444, 1482, 1547, 1596, 1638, 1729, 1938, 1989, 2142, 2166, 2223, 2261, 2394, 2527, 2652, 2907, 2964, 3094, 3249, 3276, 3458, 3876, 3978, 4199, 4284, 4332, 4446, 4522, 4641, 4693, 4788, 5054, 5187, 5814, 6137, 6188, 6498, 6783, 6916, 7581, 7956, 8398, 8892, 9044, 9282, 9386, 10108, 10374, 11628, 12274, 12597, 12996, 13566, 13923, 14079, 15162, 15561, 16796, 18411, 18564, 18772, 20349, 20748, 22743, 24548, 25194, 27132, 27846, 28158, 29393, 30324, 31122, 32851, 36822, 37791, 40698, 42237, 42959, 45486, 50388, 55233, 55692, 56316, 58786, 62244, 65702, 73644, 75582, 79781, 81396, 84474, 85918, 88179, 90972, 98553, 110466, 117572, 128877, 131404, 151164, 159562, 168948, 171836, 176358, 197106, 220932, 239343, 257754, 264537, 295659, 319124, 352716, 386631, 394212, 478686, 515508, 529074, 558467, 591318, 718029, 773262, 957372, 1058148, 1116934, 1182636, 1436058, 1546524, 1675401, 2233868, 2872116, 3350802, 5026203, 6701604, 10052406, 20104812]

約数ペア:

[(1, 20104812), (2, 10052406), (3, 6701604), (4, 5026203), (6, 3350802), (7, 2872116), (9, 2233868), (12, 1675401), (13, 1546524), (14, 1436058), (17, 1182636), (18, 1116934), (19, 1058148), (21, 957372), (26, 773262), (28, 718029), (34, 591318), (36, 558467), (38, 529074), (39, 515508), (42, 478686), (51, 394212), (52, 386631), (57, 352716), (63, 319124), (68, 295659), (76, 264537), (78, 257754), (84, 239343), (91, 220932), (102, 197106), (114, 176358), (117, 171836), (119, 168948), (126, 159562), (133, 151164), (153, 131404), (156, 128877), (171, 117572), (182, 110466), (204, 98553), (221, 90972), (228, 88179), (234, 85918), (238, 84474), (247, 81396), (252, 79781), (266, 75582), (273, 73644), (306, 65702), (323, 62244), (342, 58786), (357, 56316), (361, 55692), (364, 55233), (399, 50388), (442, 45486), (468, 42959), (476, 42237), (494, 40698), (532, 37791), (546, 36822), (612, 32851), (646, 31122), (663, 30324), (684, 29393), (714, 28158), (722, 27846), (741, 27132), (798, 25194), (819, 24548), (884, 22743), (969, 20748), (988, 20349), (1071, 18772), (1083, 18564), (1092, 18411), (1197, 16796), (1292, 15561), (1326, 15162), (1428, 14079), (1444, 13923), (1482, 13566), (1547, 12996), (1596, 12597), (1638, 12274), (1729, 11628), (1938, 10374), (1989, 10108), (2142, 9386), (2166, 9282), (2223, 9044), (2261, 8892), (2394, 8398), (2527, 7956), (2652, 7581), (2907, 6916), (2964, 6783), (3094, 6498), (3249, 6188), (3276, 6137), (3458, 5814), (3876, 5187), (3978, 5054), (4199, 4788), (4284, 4693), (4332, 4641), (4446, 4522)]