834248890

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{809}}^1\times {\mathrm{1021}}^1$

素因数の和:1938

約数の個数: 32

約数和(自身を含む): 1519877520

約数和(自身を除く): 685628630

約数列:

[1, 2, 5, 10, 101, 202, 505, 809, 1010, 1021, 1618, 2042, 4045, 5105, 8090, 10210, 81709, 103121, 163418, 206242, 408545, 515605, 817090, 825989, 1031210, 1651978, 4129945, 8259890, 83424889, 166849778, 417124445, 834248890]

約数ペア:

[(1, 834248890), (2, 417124445), (5, 166849778), (10, 83424889), (101, 8259890), (202, 4129945), (505, 1651978), (809, 1031210), (1010, 825989), (1021, 817090), (1618, 515605), (2042, 408545), (4045, 206242), (5105, 163418), (8090, 103121), (10210, 81709)]