20481230

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{397}}^1$

素因数の和:489

約数の個数: 64

約数和(自身を含む): 46766592

約数和(自身を除く): 26285362

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 67, 70, 77, 110, 134, 154, 335, 385, 397, 469, 670, 737, 770, 794, 938, 1474, 1985, 2345, 2779, 3685, 3970, 4367, 4690, 5159, 5558, 7370, 8734, 10318, 13895, 21835, 25795, 26599, 27790, 30569, 43670, 51590, 53198, 61138, 132995, 152845, 186193, 265990, 292589, 305690, 372386, 585178, 930965, 1462945, 1861930, 2048123, 2925890, 4096246, 10240615, 20481230]

約数ペア:

[(1, 20481230), (2, 10240615), (5, 4096246), (7, 2925890), (10, 2048123), (11, 1861930), (14, 1462945), (22, 930965), (35, 585178), (55, 372386), (67, 305690), (70, 292589), (77, 265990), (110, 186193), (134, 152845), (154, 132995), (335, 61138), (385, 53198), (397, 51590), (469, 43670), (670, 30569), (737, 27790), (770, 26599), (794, 25795), (938, 21835), (1474, 13895), (1985, 10318), (2345, 8734), (2779, 7370), (3685, 5558), (3970, 5159), (4367, 4690)]