51666680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{7643}}^1$

素因数の和:7680

約数の個数: 48

約数和(自身を含む): 125896680

約数和(自身を除く): 74230000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 338, 520, 676, 845, 1352, 1690, 3380, 6760, 7643, 15286, 30572, 38215, 61144, 76430, 99359, 152860, 198718, 305720, 397436, 496795, 794872, 993590, 1291667, 1987180, 2583334, 3974360, 5166668, 6458335, 10333336, 12916670, 25833340, 51666680]

約数ペア:

[(1, 51666680), (2, 25833340), (4, 12916670), (5, 10333336), (8, 6458335), (10, 5166668), (13, 3974360), (20, 2583334), (26, 1987180), (40, 1291667), (52, 993590), (65, 794872), (104, 496795), (130, 397436), (169, 305720), (260, 198718), (338, 152860), (520, 99359), (676, 76430), (845, 61144), (1352, 38215), (1690, 30572), (3380, 15286), (6760, 7643)]