15771920

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{11597}}^1$

素因数の和:11627

約数の個数: 40

約数和(自身を含む): 38830104

約数和(自身を除く): 23058184

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 11597, 23194, 46388, 57985, 92776, 115970, 185552, 197149, 231940, 394298, 463880, 788596, 927760, 985745, 1577192, 1971490, 3154384, 3942980, 7885960, 15771920]

約数ペア:

[(1, 15771920), (2, 7885960), (4, 3942980), (5, 3154384), (8, 1971490), (10, 1577192), (16, 985745), (17, 927760), (20, 788596), (34, 463880), (40, 394298), (68, 231940), (80, 197149), (85, 185552), (136, 115970), (170, 92776), (272, 57985), (340, 46388), (680, 23194), (1360, 11597)]