20195493380

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{769}}^1\times {\mathrm{13001}}^1$

素因数の和:13880

約数の個数: 48

約数和(自身を含む): 42889437360

約数和(自身を除く): 22693943980

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 769, 1010, 1538, 2020, 3076, 3845, 7690, 13001, 15380, 26002, 52004, 65005, 77669, 130010, 155338, 260020, 310676, 388345, 776690, 1313101, 1553380, 2626202, 5252404, 6565505, 9997769, 13131010, 19995538, 26262020, 39991076, 49988845, 99977690, 199955380, 1009774669, 2019549338, 4039098676, 5048873345, 10097746690, 20195493380]

約数ペア:

[(1, 20195493380), (2, 10097746690), (4, 5048873345), (5, 4039098676), (10, 2019549338), (20, 1009774669), (101, 199955380), (202, 99977690), (404, 49988845), (505, 39991076), (769, 26262020), (1010, 19995538), (1538, 13131010), (2020, 9997769), (3076, 6565505), (3845, 5252404), (7690, 2626202), (13001, 1553380), (15380, 1313101), (26002, 776690), (52004, 388345), (65005, 310676), (77669, 260020), (130010, 155338)]