81672318

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{419}}^1$

素因数の和:471

約数の個数: 144

約数和(自身を含む): 235282320

約数和(自身を除く): 153610002

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 17, 18, 21, 26, 34, 39, 42, 49, 51, 63, 78, 91, 98, 102, 117, 119, 126, 147, 153, 182, 221, 234, 238, 273, 294, 306, 357, 419, 441, 442, 546, 637, 663, 714, 819, 833, 838, 882, 1071, 1257, 1274, 1326, 1547, 1638, 1666, 1911, 1989, 2142, 2499, 2514, 2933, 3094, 3771, 3822, 3978, 4641, 4998, 5447, 5733, 5866, 7123, 7497, 7542, 8799, 9282, 10829, 10894, 11466, 13923, 14246, 14994, 16341, 17598, 20531, 21369, 21658, 26397, 27846, 32487, 32682, 38129, 41062, 42738, 49023, 49861, 52794, 61593, 64107, 64974, 76258, 92599, 97461, 98046, 99722, 114387, 123186, 128214, 149583, 184779, 185198, 194922, 228774, 266903, 277797, 299166, 343161, 349027, 369558, 448749, 533806, 555594, 648193, 686322, 698054, 800709, 833391, 897498, 1047081, 1296386, 1601418, 1666782, 1944579, 2094162, 2402127, 3141243, 3889158, 4537351, 4804254, 5833737, 6282486, 9074702, 11667474, 13612053, 27224106, 40836159, 81672318]

約数ペア:

[(1, 81672318), (2, 40836159), (3, 27224106), (6, 13612053), (7, 11667474), (9, 9074702), (13, 6282486), (14, 5833737), (17, 4804254), (18, 4537351), (21, 3889158), (26, 3141243), (34, 2402127), (39, 2094162), (42, 1944579), (49, 1666782), (51, 1601418), (63, 1296386), (78, 1047081), (91, 897498), (98, 833391), (102, 800709), (117, 698054), (119, 686322), (126, 648193), (147, 555594), (153, 533806), (182, 448749), (221, 369558), (234, 349027), (238, 343161), (273, 299166), (294, 277797), (306, 266903), (357, 228774), (419, 194922), (441, 185198), (442, 184779), (546, 149583), (637, 128214), (663, 123186), (714, 114387), (819, 99722), (833, 98046), (838, 97461), (882, 92599), (1071, 76258), (1257, 64974), (1274, 64107), (1326, 61593), (1547, 52794), (1638, 49861), (1666, 49023), (1911, 42738), (1989, 41062), (2142, 38129), (2499, 32682), (2514, 32487), (2933, 27846), (3094, 26397), (3771, 21658), (3822, 21369), (3978, 20531), (4641, 17598), (4998, 16341), (5447, 14994), (5733, 14246), (5866, 13923), (7123, 11466), (7497, 10894), (7542, 10829), (8799, 9282)]