78688688

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{2539}}^1$

素因数の和:2709

約数の個数: 40

約数和(自身を含む): 165354000

約数和(自身を除く): 86665312

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 149, 208, 298, 596, 1192, 1937, 2384, 2539, 3874, 5078, 7748, 10156, 15496, 20312, 30992, 33007, 40624, 66014, 132028, 264056, 378311, 528112, 756622, 1513244, 3026488, 4918043, 6052976, 9836086, 19672172, 39344344, 78688688]

約数ペア:

[(1, 78688688), (2, 39344344), (4, 19672172), (8, 9836086), (13, 6052976), (16, 4918043), (26, 3026488), (52, 1513244), (104, 756622), (149, 528112), (208, 378311), (298, 264056), (596, 132028), (1192, 66014), (1937, 40624), (2384, 33007), (2539, 30992), (3874, 20312), (5078, 15496), (7748, 10156)]