51124820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{73}}^1\times {\mathrm{97}}^1$

素因数の和:217

約数の個数: 72

約数和(自身を含む): 116046504

約数和(自身を除く): 64921684

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 73, 76, 95, 97, 146, 190, 194, 292, 361, 365, 380, 388, 485, 722, 730, 970, 1387, 1444, 1460, 1805, 1843, 1940, 2774, 3610, 3686, 5548, 6935, 7081, 7220, 7372, 9215, 13870, 14162, 18430, 26353, 27740, 28324, 35017, 35405, 36860, 52706, 70034, 70810, 105412, 131765, 134539, 140068, 141620, 175085, 263530, 269078, 350170, 527060, 538156, 672695, 700340, 1345390, 2556241, 2690780, 5112482, 10224964, 12781205, 25562410, 51124820]

約数ペア:

[(1, 51124820), (2, 25562410), (4, 12781205), (5, 10224964), (10, 5112482), (19, 2690780), (20, 2556241), (38, 1345390), (73, 700340), (76, 672695), (95, 538156), (97, 527060), (146, 350170), (190, 269078), (194, 263530), (292, 175085), (361, 141620), (365, 140068), (380, 134539), (388, 131765), (485, 105412), (722, 70810), (730, 70034), (970, 52706), (1387, 36860), (1444, 35405), (1460, 35017), (1805, 28324), (1843, 27740), (1940, 26353), (2774, 18430), (3610, 14162), (3686, 13870), (5548, 9215), (6935, 7372), (7081, 7220)]