20010551380

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1861}}^1\times {\mathrm{12503}}^1$

素因数の和:14416

約数の個数: 48

約数和(自身を含む): 43025963904

約数和(自身を除く): 23015412524

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 1861, 3722, 7444, 9305, 12503, 18610, 25006, 37220, 50012, 62515, 80023, 125030, 160046, 250060, 320092, 400115, 537629, 800230, 1075258, 1600460, 2150516, 2688145, 5376290, 10752580, 23268083, 46536166, 93072332, 116340415, 232680830, 465361660, 1000527569, 2001055138, 4002110276, 5002637845, 10005275690, 20010551380]

約数ペア:

[(1, 20010551380), (2, 10005275690), (4, 5002637845), (5, 4002110276), (10, 2001055138), (20, 1000527569), (43, 465361660), (86, 232680830), (172, 116340415), (215, 93072332), (430, 46536166), (860, 23268083), (1861, 10752580), (3722, 5376290), (7444, 2688145), (9305, 2150516), (12503, 1600460), (18610, 1075258), (25006, 800230), (37220, 537629), (50012, 400115), (62515, 320092), (80023, 250060), (125030, 160046)]