19658080

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^2\times {\mathrm{727}}^1$

素因数の和:768

約数の個数: 72

約数和(自身を含む): 50358672

約数和(自身を除く): 30700592

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 169, 208, 260, 338, 416, 520, 676, 727, 845, 1040, 1352, 1454, 1690, 2080, 2704, 2908, 3380, 3635, 5408, 5816, 6760, 7270, 9451, 11632, 13520, 14540, 18902, 23264, 27040, 29080, 37804, 47255, 58160, 75608, 94510, 116320, 122863, 151216, 189020, 245726, 302432, 378040, 491452, 614315, 756080, 982904, 1228630, 1512160, 1965808, 2457260, 3931616, 4914520, 9829040, 19658080]

約数ペア:

[(1, 19658080), (2, 9829040), (4, 4914520), (5, 3931616), (8, 2457260), (10, 1965808), (13, 1512160), (16, 1228630), (20, 982904), (26, 756080), (32, 614315), (40, 491452), (52, 378040), (65, 302432), (80, 245726), (104, 189020), (130, 151216), (160, 122863), (169, 116320), (208, 94510), (260, 75608), (338, 58160), (416, 47255), (520, 37804), (676, 29080), (727, 27040), (845, 23264), (1040, 18902), (1352, 14540), (1454, 13520), (1690, 11632), (2080, 9451), (2704, 7270), (2908, 6760), (3380, 5816), (3635, 5408)]