20648930

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{229}}^1$

素因数の和:434

約数の個数: 32

約数和(自身を含む): 38154240

約数和(自身を除く): 17505310

約数列:

[1, 2, 5, 10, 71, 127, 142, 229, 254, 355, 458, 635, 710, 1145, 1270, 2290, 9017, 16259, 18034, 29083, 32518, 45085, 58166, 81295, 90170, 145415, 162590, 290830, 2064893, 4129786, 10324465, 20648930]

約数ペア:

[(1, 20648930), (2, 10324465), (5, 4129786), (10, 2064893), (71, 290830), (127, 162590), (142, 145415), (229, 90170), (254, 81295), (355, 58166), (458, 45085), (635, 32518), (710, 29083), (1145, 18034), (1270, 16259), (2290, 9017)]