20178387515

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{279421}}^1$

素因数の和:279551

約数の個数: 32

約数和(自身を含む): 28729052352

約数和(自身を除く): 8550664837

約数列:

[1, 5, 11, 13, 55, 65, 101, 143, 505, 715, 1111, 1313, 5555, 6565, 14443, 72215, 279421, 1397105, 3073631, 3632473, 15368155, 18162365, 28221521, 39957203, 141107605, 199786015, 310436731, 366879773, 1552183655, 1834398865, 4035677503, 20178387515]

約数ペア:

[(1, 20178387515), (5, 4035677503), (11, 1834398865), (13, 1552183655), (55, 366879773), (65, 310436731), (101, 199786015), (143, 141107605), (505, 39957203), (715, 28221521), (1111, 18162365), (1313, 15368155), (5555, 3632473), (6565, 3073631), (14443, 1397105), (72215, 279421)]