81220698

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1$

素因数の和:173

約数の個数: 128

約数和(自身を含む): 206841600

約数和(自身を除く): 125620902

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 37, 39, 53, 54, 59, 74, 78, 106, 111, 117, 118, 159, 177, 222, 234, 318, 333, 351, 354, 477, 481, 531, 666, 689, 702, 767, 954, 962, 999, 1062, 1378, 1431, 1443, 1534, 1593, 1961, 1998, 2067, 2183, 2301, 2862, 2886, 3127, 3186, 3922, 4134, 4329, 4366, 4602, 5883, 6201, 6254, 6549, 6903, 8658, 9381, 11766, 12402, 12987, 13098, 13806, 17649, 18603, 18762, 19647, 20709, 25493, 25974, 28143, 28379, 35298, 37206, 39294, 40651, 41418, 50986, 52947, 56286, 56758, 58941, 76479, 81302, 84429, 85137, 105894, 115699, 117882, 121953, 152958, 168858, 170274, 229437, 231398, 243906, 255411, 347097, 365859, 458874, 510822, 688311, 694194, 731718, 766233, 1041291, 1097577, 1376622, 1504087, 1532466, 2082582, 2195154, 3008174, 3123873, 4512261, 6247746, 9024522, 13536783, 27073566, 40610349, 81220698]

約数ペア:

[(1, 81220698), (2, 40610349), (3, 27073566), (6, 13536783), (9, 9024522), (13, 6247746), (18, 4512261), (26, 3123873), (27, 3008174), (37, 2195154), (39, 2082582), (53, 1532466), (54, 1504087), (59, 1376622), (74, 1097577), (78, 1041291), (106, 766233), (111, 731718), (117, 694194), (118, 688311), (159, 510822), (177, 458874), (222, 365859), (234, 347097), (318, 255411), (333, 243906), (351, 231398), (354, 229437), (477, 170274), (481, 168858), (531, 152958), (666, 121953), (689, 117882), (702, 115699), (767, 105894), (954, 85137), (962, 84429), (999, 81302), (1062, 76479), (1378, 58941), (1431, 56758), (1443, 56286), (1534, 52947), (1593, 50986), (1961, 41418), (1998, 40651), (2067, 39294), (2183, 37206), (2301, 35298), (2862, 28379), (2886, 28143), (3127, 25974), (3186, 25493), (3922, 20709), (4134, 19647), (4329, 18762), (4366, 18603), (4602, 17649), (5883, 13806), (6201, 13098), (6254, 12987), (6549, 12402), (6903, 11766), (8658, 9381)]