90800380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{389}}^1\times {\mathrm{1061}}^1$

素因数の和:1470

約数の個数: 48

約数和(自身を含む): 208746720

約数和(自身を除く): 117946340

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 389, 778, 1061, 1556, 1945, 2122, 3890, 4244, 4279, 5305, 7780, 8558, 10610, 11671, 17116, 21220, 21395, 23342, 42790, 46684, 58355, 85580, 116710, 233420, 412729, 825458, 1650916, 2063645, 4127290, 4540019, 8254580, 9080038, 18160076, 22700095, 45400190, 90800380]

約数ペア:

[(1, 90800380), (2, 45400190), (4, 22700095), (5, 18160076), (10, 9080038), (11, 8254580), (20, 4540019), (22, 4127290), (44, 2063645), (55, 1650916), (110, 825458), (220, 412729), (389, 233420), (778, 116710), (1061, 85580), (1556, 58355), (1945, 46684), (2122, 42790), (3890, 23342), (4244, 21395), (4279, 21220), (5305, 17116), (7780, 11671), (8558, 10610)]