20744857580

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{910661}}^1$

素因数の和:910754

約数の個数: 48

約数和(自身を含む): 46815312096

約数和(自身を除く): 26070454516

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 67, 68, 85, 134, 170, 268, 335, 340, 670, 1139, 1340, 2278, 4556, 5695, 11390, 22780, 910661, 1821322, 3642644, 4553305, 9106610, 15481237, 18213220, 30962474, 61014287, 61924948, 77406185, 122028574, 154812370, 244057148, 305071435, 309624740, 610142870, 1037242879, 1220285740, 2074485758, 4148971516, 5186214395, 10372428790, 20744857580]

約数ペア:

[(1, 20744857580), (2, 10372428790), (4, 5186214395), (5, 4148971516), (10, 2074485758), (17, 1220285740), (20, 1037242879), (34, 610142870), (67, 309624740), (68, 305071435), (85, 244057148), (134, 154812370), (170, 122028574), (268, 77406185), (335, 61924948), (340, 61014287), (670, 30962474), (1139, 18213220), (1340, 15481237), (2278, 9106610), (4556, 4553305), (5695, 3642644), (11390, 1821322), (22780, 910661)]