20128672

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{197}}^1$

素因数の和:341

約数の個数: 48

約数和(自身を含む): 41513472

約数和(自身を除く): 21384800

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 103, 124, 197, 206, 248, 394, 412, 496, 788, 824, 992, 1576, 1648, 3152, 3193, 3296, 6107, 6304, 6386, 12214, 12772, 20291, 24428, 25544, 40582, 48856, 51088, 81164, 97712, 102176, 162328, 195424, 324656, 629021, 649312, 1258042, 2516084, 5032168, 10064336, 20128672]

約数ペア:

[(1, 20128672), (2, 10064336), (4, 5032168), (8, 2516084), (16, 1258042), (31, 649312), (32, 629021), (62, 324656), (103, 195424), (124, 162328), (197, 102176), (206, 97712), (248, 81164), (394, 51088), (412, 48856), (496, 40582), (788, 25544), (824, 24428), (992, 20291), (1576, 12772), (1648, 12214), (3152, 6386), (3193, 6304), (3296, 6107)]