20212821070

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^2\times {\mathrm{184879}}^1$

素因数の和:184957

約数の個数: 48

約数和(自身を含む): 40579680960

約数和(自身を除く): 20366859890

約数列:

[1, 2, 5, 10, 13, 26, 29, 58, 65, 130, 145, 290, 377, 754, 841, 1682, 1885, 3770, 4205, 8410, 10933, 21866, 54665, 109330, 184879, 369758, 924395, 1848790, 2403427, 4806854, 5361491, 10722982, 12017135, 24034270, 26807455, 53614910, 69699383, 139398766, 155483239, 310966478, 348496915, 696993830, 777416195, 1554832390, 2021282107, 4042564214, 10106410535, 20212821070]

約数ペア:

[(1, 20212821070), (2, 10106410535), (5, 4042564214), (10, 2021282107), (13, 1554832390), (26, 777416195), (29, 696993830), (58, 348496915), (65, 310966478), (130, 155483239), (145, 139398766), (290, 69699383), (377, 53614910), (754, 26807455), (841, 24034270), (1682, 12017135), (1885, 10722982), (3770, 5361491), (4205, 4806854), (8410, 2403427), (10933, 1848790), (21866, 924395), (54665, 369758), (109330, 184879)]