81328338

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{173}}^1$

素因数の和:249

約数の個数: 144

約数和(自身を含む): 227439576

約数和(自身を除く): 146111238

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 39, 41, 42, 49, 63, 78, 82, 91, 98, 117, 123, 126, 147, 173, 182, 234, 246, 273, 287, 294, 346, 369, 441, 519, 533, 546, 574, 637, 738, 819, 861, 882, 1038, 1066, 1211, 1274, 1557, 1599, 1638, 1722, 1911, 2009, 2249, 2422, 2583, 3114, 3198, 3633, 3731, 3822, 4018, 4498, 4797, 5166, 5733, 6027, 6747, 7093, 7266, 7462, 8477, 9594, 10899, 11193, 11466, 12054, 13494, 14186, 15743, 16954, 18081, 20241, 21279, 21798, 22386, 25431, 26117, 31486, 33579, 36162, 40482, 42558, 47229, 49651, 50862, 52234, 63837, 67158, 76293, 78351, 92209, 94458, 99302, 110201, 127674, 141687, 148953, 152586, 156702, 184418, 220402, 235053, 276627, 283374, 297906, 330603, 347557, 446859, 470106, 553254, 645463, 661206, 695114, 829881, 893718, 991809, 1042671, 1290926, 1659762, 1936389, 1983618, 2085342, 3128013, 3872778, 4518241, 5809167, 6256026, 9036482, 11618334, 13554723, 27109446, 40664169, 81328338]

約数ペア:

[(1, 81328338), (2, 40664169), (3, 27109446), (6, 13554723), (7, 11618334), (9, 9036482), (13, 6256026), (14, 5809167), (18, 4518241), (21, 3872778), (26, 3128013), (39, 2085342), (41, 1983618), (42, 1936389), (49, 1659762), (63, 1290926), (78, 1042671), (82, 991809), (91, 893718), (98, 829881), (117, 695114), (123, 661206), (126, 645463), (147, 553254), (173, 470106), (182, 446859), (234, 347557), (246, 330603), (273, 297906), (287, 283374), (294, 276627), (346, 235053), (369, 220402), (441, 184418), (519, 156702), (533, 152586), (546, 148953), (574, 141687), (637, 127674), (738, 110201), (819, 99302), (861, 94458), (882, 92209), (1038, 78351), (1066, 76293), (1211, 67158), (1274, 63837), (1557, 52234), (1599, 50862), (1638, 49651), (1722, 47229), (1911, 42558), (2009, 40482), (2249, 36162), (2422, 33579), (2583, 31486), (3114, 26117), (3198, 25431), (3633, 22386), (3731, 21798), (3822, 21279), (4018, 20241), (4498, 18081), (4797, 16954), (5166, 15743), (5733, 14186), (6027, 13494), (6747, 12054), (7093, 11466), (7266, 11193), (7462, 10899), (8477, 9594)]