291217700

素因数分解:

$2^2\times 5^2\times {\mathrm{79}}^1\times {\mathrm{191}}^1\times {\mathrm{193}}^1$

素因数の和:477

約数の個数: 72

約数和(自身を含む): 646625280

約数和(自身を除く): 355407580

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 79, 100, 158, 191, 193, 316, 382, 386, 395, 764, 772, 790, 955, 965, 1580, 1910, 1930, 1975, 3820, 3860, 3950, 4775, 4825, 7900, 9550, 9650, 15089, 15247, 19100, 19300, 30178, 30494, 36863, 60356, 60988, 73726, 75445, 76235, 147452, 150890, 152470, 184315, 301780, 304940, 368630, 377225, 381175, 737260, 754450, 762350, 921575, 1508900, 1524700, 1843150, 2912177, 3686300, 5824354, 11648708, 14560885, 29121770, 58243540, 72804425, 145608850, 291217700]

約数ペア:

[(1, 291217700), (2, 145608850), (4, 72804425), (5, 58243540), (10, 29121770), (20, 14560885), (25, 11648708), (50, 5824354), (79, 3686300), (100, 2912177), (158, 1843150), (191, 1524700), (193, 1508900), (316, 921575), (382, 762350), (386, 754450), (395, 737260), (764, 381175), (772, 377225), (790, 368630), (955, 304940), (965, 301780), (1580, 184315), (1910, 152470), (1930, 150890), (1975, 147452), (3820, 76235), (3860, 75445), (3950, 73726), (4775, 60988), (4825, 60356), (7900, 36863), (9550, 30494), (9650, 30178), (15089, 19300), (15247, 19100)]