218352654

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{971}}^1$

素因数の和:1054

約数の個数: 72

約数和(自身を含む): 526997016

約数和(自身を除く): 308644362

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 31, 39, 62, 78, 93, 117, 186, 234, 279, 403, 558, 806, 961, 971, 1209, 1922, 1942, 2418, 2883, 2913, 3627, 5766, 5826, 7254, 8649, 8739, 12493, 12623, 17298, 17478, 24986, 25246, 30101, 37479, 37869, 60202, 74958, 75738, 90303, 112437, 113607, 180606, 224874, 227214, 270909, 391313, 541818, 782626, 933131, 1173939, 1866262, 2347878, 2799393, 3521817, 5598786, 7043634, 8398179, 12130703, 16796358, 24261406, 36392109, 72784218, 109176327, 218352654]

約数ペア:

[(1, 218352654), (2, 109176327), (3, 72784218), (6, 36392109), (9, 24261406), (13, 16796358), (18, 12130703), (26, 8398179), (31, 7043634), (39, 5598786), (62, 3521817), (78, 2799393), (93, 2347878), (117, 1866262), (186, 1173939), (234, 933131), (279, 782626), (403, 541818), (558, 391313), (806, 270909), (961, 227214), (971, 224874), (1209, 180606), (1922, 113607), (1942, 112437), (2418, 90303), (2883, 75738), (2913, 74958), (3627, 60202), (5766, 37869), (5826, 37479), (7254, 30101), (8649, 25246), (8739, 24986), (12493, 17478), (12623, 17298)]