281736460

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{191}}^1\times {\mathrm{563}}^1$

素因数の和:894

約数の個数: 48

約数和(自身を含む): 600348672

約数和(自身を除く): 318612212

約数列:

[1, 2, 4, 5, 10, 20, 131, 191, 262, 382, 524, 563, 655, 764, 955, 1126, 1310, 1910, 2252, 2620, 2815, 3820, 5630, 11260, 25021, 50042, 73753, 100084, 107533, 125105, 147506, 215066, 250210, 295012, 368765, 430132, 500420, 537665, 737530, 1075330, 1475060, 2150660, 14086823, 28173646, 56347292, 70434115, 140868230, 281736460]

約数ペア:

[(1, 281736460), (2, 140868230), (4, 70434115), (5, 56347292), (10, 28173646), (20, 14086823), (131, 2150660), (191, 1475060), (262, 1075330), (382, 737530), (524, 537665), (563, 500420), (655, 430132), (764, 368765), (955, 295012), (1126, 250210), (1310, 215066), (1910, 147506), (2252, 125105), (2620, 107533), (2815, 100084), (3820, 73753), (5630, 50042), (11260, 25021)]