12990224

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{173}}^1$

素因数の和:232

約数の個数: 60

約数和(自身を含む): 28771596

約数和(自身を除く): 15781372

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 173, 208, 247, 304, 346, 361, 494, 692, 722, 988, 1384, 1444, 1976, 2249, 2768, 2888, 3287, 3952, 4498, 4693, 5776, 6574, 8996, 9386, 13148, 17992, 18772, 26296, 35984, 37544, 42731, 52592, 62453, 75088, 85462, 124906, 170924, 249812, 341848, 499624, 683696, 811889, 999248, 1623778, 3247556, 6495112, 12990224]

約数ペア:

[(1, 12990224), (2, 6495112), (4, 3247556), (8, 1623778), (13, 999248), (16, 811889), (19, 683696), (26, 499624), (38, 341848), (52, 249812), (76, 170924), (104, 124906), (152, 85462), (173, 75088), (208, 62453), (247, 52592), (304, 42731), (346, 37544), (361, 35984), (494, 26296), (692, 18772), (722, 17992), (988, 13148), (1384, 9386), (1444, 8996), (1976, 6574), (2249, 5776), (2768, 4693), (2888, 4498), (3287, 3952)]