20120203660

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{2293}}^1\times {\mathrm{4523}}^1$

素因数の和:6922

約数の個数: 48

約数和(自身を含む): 42716078496

約数和(自身を除く): 22595874836

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 2293, 4523, 4586, 9046, 9172, 11465, 18092, 22615, 22930, 45230, 45860, 90460, 222421, 438731, 444842, 877462, 889684, 1112105, 1754924, 2193655, 2224210, 4387310, 4448420, 8774620, 10371239, 20742478, 41484956, 51856195, 103712390, 207424780, 1006010183, 2012020366, 4024040732, 5030050915, 10060101830, 20120203660]

約数ペア:

[(1, 20120203660), (2, 10060101830), (4, 5030050915), (5, 4024040732), (10, 2012020366), (20, 1006010183), (97, 207424780), (194, 103712390), (388, 51856195), (485, 41484956), (970, 20742478), (1940, 10371239), (2293, 8774620), (4523, 4448420), (4586, 4387310), (9046, 2224210), (9172, 2193655), (11465, 1754924), (18092, 1112105), (22615, 889684), (22930, 877462), (45230, 444842), (45860, 438731), (90460, 222421)]