637680620

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{311}}^1\times {\mathrm{653}}^1$

素因数の和:1130

約数の個数: 48

約数和(自身を含む): 1354062528

約数和(自身を除く): 716381908

約数列:

[1, 2, 4, 5, 10, 20, 157, 311, 314, 622, 628, 653, 785, 1244, 1306, 1555, 1570, 2612, 3110, 3140, 3265, 6220, 6530, 13060, 48827, 97654, 102521, 195308, 203083, 205042, 244135, 406166, 410084, 488270, 512605, 812332, 976540, 1015415, 1025210, 2030830, 2050420, 4061660, 31884031, 63768062, 127536124, 159420155, 318840310, 637680620]

約数ペア:

[(1, 637680620), (2, 318840310), (4, 159420155), (5, 127536124), (10, 63768062), (20, 31884031), (157, 4061660), (311, 2050420), (314, 2030830), (622, 1025210), (628, 1015415), (653, 976540), (785, 812332), (1244, 512605), (1306, 488270), (1555, 410084), (1570, 406166), (2612, 244135), (3110, 205042), (3140, 203083), (3265, 195308), (6220, 102521), (6530, 97654), (13060, 48827)]