20888868

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1$

素因数の和:122

約数の個数: 192

約数和(自身を含む): 68640768

約数和(自身を除く): 47751900

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 13, 14, 21, 22, 26, 28, 33, 37, 39, 42, 44, 47, 52, 66, 74, 77, 78, 84, 91, 94, 111, 132, 141, 143, 148, 154, 156, 182, 188, 222, 231, 259, 273, 282, 286, 308, 329, 364, 407, 429, 444, 462, 481, 517, 518, 546, 564, 572, 611, 658, 777, 814, 858, 924, 962, 987, 1001, 1034, 1036, 1092, 1221, 1222, 1316, 1443, 1551, 1554, 1628, 1716, 1739, 1833, 1924, 1974, 2002, 2068, 2442, 2444, 2849, 2886, 3003, 3102, 3108, 3367, 3478, 3619, 3666, 3948, 4004, 4277, 4884, 5217, 5291, 5698, 5772, 6006, 6204, 6721, 6734, 6956, 7238, 7332, 8547, 8554, 10101, 10434, 10582, 10857, 11396, 12012, 12173, 12831, 13442, 13468, 14476, 15873, 17094, 17108, 19129, 20163, 20202, 20868, 21164, 21714, 22607, 24346, 25662, 26884, 31746, 34188, 36519, 37037, 38258, 40326, 40404, 43428, 45214, 47047, 48692, 51324, 57387, 63492, 67821, 73038, 74074, 76516, 80652, 90428, 94094, 111111, 114774, 133903, 135642, 141141, 146076, 148148, 158249, 188188, 222222, 229548, 248677, 267806, 271284, 282282, 316498, 401709, 444444, 474747, 497354, 535612, 564564, 632996, 746031, 803418, 949494, 994708, 1492062, 1606836, 1740739, 1898988, 2984124, 3481478, 5222217, 6962956, 10444434, 20888868]

約数ペア:

[(1, 20888868), (2, 10444434), (3, 6962956), (4, 5222217), (6, 3481478), (7, 2984124), (11, 1898988), (12, 1740739), (13, 1606836), (14, 1492062), (21, 994708), (22, 949494), (26, 803418), (28, 746031), (33, 632996), (37, 564564), (39, 535612), (42, 497354), (44, 474747), (47, 444444), (52, 401709), (66, 316498), (74, 282282), (77, 271284), (78, 267806), (84, 248677), (91, 229548), (94, 222222), (111, 188188), (132, 158249), (141, 148148), (143, 146076), (148, 141141), (154, 135642), (156, 133903), (182, 114774), (188, 111111), (222, 94094), (231, 90428), (259, 80652), (273, 76516), (282, 74074), (286, 73038), (308, 67821), (329, 63492), (364, 57387), (407, 51324), (429, 48692), (444, 47047), (462, 45214), (481, 43428), (517, 40404), (518, 40326), (546, 38258), (564, 37037), (572, 36519), (611, 34188), (658, 31746), (777, 26884), (814, 25662), (858, 24346), (924, 22607), (962, 21714), (987, 21164), (1001, 20868), (1034, 20202), (1036, 20163), (1092, 19129), (1221, 17108), (1222, 17094), (1316, 15873), (1443, 14476), (1551, 13468), (1554, 13442), (1628, 12831), (1716, 12173), (1739, 12012), (1833, 11396), (1924, 10857), (1974, 10582), (2002, 10434), (2068, 10101), (2442, 8554), (2444, 8547), (2849, 7332), (2886, 7238), (3003, 6956), (3102, 6734), (3108, 6721), (3367, 6204), (3478, 6006), (3619, 5772), (3666, 5698), (3948, 5291), (4004, 5217), (4277, 4884)]