900978260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{495043}}^1$

素因数の和:495072

約数の個数: 48

約数和(自身を含む): 2328686976

約数和(自身を除く): 1427708716

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 495043, 990086, 1980172, 2475215, 3465301, 4950430, 6435559, 6930602, 9900860, 12871118, 13861204, 17326505, 25742236, 32177795, 34653010, 45048913, 64355590, 69306020, 90097826, 128711180, 180195652, 225244565, 450489130, 900978260]

約数ペア:

[(1, 900978260), (2, 450489130), (4, 225244565), (5, 180195652), (7, 128711180), (10, 90097826), (13, 69306020), (14, 64355590), (20, 45048913), (26, 34653010), (28, 32177795), (35, 25742236), (52, 17326505), (65, 13861204), (70, 12871118), (91, 9900860), (130, 6930602), (140, 6435559), (182, 4950430), (260, 3465301), (364, 2475215), (455, 1980172), (910, 990086), (1820, 495043)]