9807804980

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1861}}^1\times {\mathrm{2609}}^1$

素因数の和:4580

約数の個数: 48

約数和(自身を含む): 20819468880

約数和(自身を除く): 11011663900

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 1861, 2020, 2609, 3722, 5218, 7444, 9305, 10436, 13045, 18610, 26090, 37220, 52180, 187961, 263509, 375922, 527018, 751844, 939805, 1054036, 1317545, 1879610, 2635090, 3759220, 4855349, 5270180, 9710698, 19421396, 24276745, 48553490, 97106980, 490390249, 980780498, 1961560996, 2451951245, 4903902490, 9807804980]

約数ペア:

[(1, 9807804980), (2, 4903902490), (4, 2451951245), (5, 1961560996), (10, 980780498), (20, 490390249), (101, 97106980), (202, 48553490), (404, 24276745), (505, 19421396), (1010, 9710698), (1861, 5270180), (2020, 4855349), (2609, 3759220), (3722, 2635090), (5218, 1879610), (7444, 1317545), (9305, 1054036), (10436, 939805), (13045, 751844), (18610, 527018), (26090, 375922), (37220, 263509), (52180, 187961)]