205505560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{1873}}^1$

素因数の和:2108

約数の個数: 64

約数和(自身を含む): 500582880

約数和(自身を除く): 295077320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 211, 260, 422, 520, 844, 1055, 1688, 1873, 2110, 2743, 3746, 4220, 5486, 7492, 8440, 9365, 10972, 13715, 14984, 18730, 21944, 24349, 27430, 37460, 48698, 54860, 74920, 97396, 109720, 121745, 194792, 243490, 395203, 486980, 790406, 973960, 1580812, 1976015, 3161624, 3952030, 5137639, 7904060, 10275278, 15808120, 20550556, 25688195, 41101112, 51376390, 102752780, 205505560]

約数ペア:

[(1, 205505560), (2, 102752780), (4, 51376390), (5, 41101112), (8, 25688195), (10, 20550556), (13, 15808120), (20, 10275278), (26, 7904060), (40, 5137639), (52, 3952030), (65, 3161624), (104, 1976015), (130, 1580812), (211, 973960), (260, 790406), (422, 486980), (520, 395203), (844, 243490), (1055, 194792), (1688, 121745), (1873, 109720), (2110, 97396), (2743, 74920), (3746, 54860), (4220, 48698), (5486, 37460), (7492, 27430), (8440, 24349), (9365, 21944), (10972, 18730), (13715, 14984)]