1900802840

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{184903}}^1$

素因数の和:185171

約数の個数: 32

約数和(自身を含む): 4293470880

約数和(自身を除く): 2392668040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2570, 5140, 10280, 184903, 369806, 739612, 924515, 1479224, 1849030, 3698060, 7396120, 47520071, 95040142, 190080284, 237600355, 380160568, 475200710, 950401420, 1900802840]

約数ペア:

[(1, 1900802840), (2, 950401420), (4, 475200710), (5, 380160568), (8, 237600355), (10, 190080284), (20, 95040142), (40, 47520071), (257, 7396120), (514, 3698060), (1028, 1849030), (1285, 1479224), (2056, 924515), (2570, 739612), (5140, 369806), (10280, 184903)]