20199982090

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{10357}}^1$

素因数の和:10543

約数の個数: 64

約数和(自身を含む): 38338852608

約数和(自身を除く): 18138870518

約数列:

[1, 2, 5, 10, 41, 67, 71, 82, 134, 142, 205, 335, 355, 410, 670, 710, 2747, 2911, 4757, 5494, 5822, 9514, 10357, 13735, 14555, 20714, 23785, 27470, 29110, 47570, 51785, 103570, 195037, 390074, 424637, 693919, 735347, 849274, 975185, 1387838, 1470694, 1950370, 2123185, 3469595, 3676735, 4246370, 6939190, 7353470, 28450679, 30149227, 49268249, 56901358, 60298454, 98536498, 142253395, 150746135, 246341245, 284506790, 301492270, 492682490, 2019998209, 4039996418, 10099991045, 20199982090]

約数ペア:

[(1, 20199982090), (2, 10099991045), (5, 4039996418), (10, 2019998209), (41, 492682490), (67, 301492270), (71, 284506790), (82, 246341245), (134, 150746135), (142, 142253395), (205, 98536498), (335, 60298454), (355, 56901358), (410, 49268249), (670, 30149227), (710, 28450679), (2747, 7353470), (2911, 6939190), (4757, 4246370), (5494, 3676735), (5822, 3469595), (9514, 2123185), (10357, 1950370), (13735, 1470694), (14555, 1387838), (20714, 975185), (23785, 849274), (27470, 735347), (29110, 693919), (47570, 424637), (51785, 390074), (103570, 195037)]