31257540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{823}}^1$

素因数の和:1049

約数の個数: 72

約数和(自身を含む): 95379648

約数和(自身を除く): 64122108

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 211, 422, 633, 823, 844, 1055, 1266, 1646, 1899, 2110, 2469, 2532, 3165, 3292, 3798, 4115, 4220, 4938, 6330, 7407, 7596, 8230, 9495, 9876, 12345, 12660, 14814, 16460, 18990, 24690, 29628, 37035, 37980, 49380, 74070, 148140, 173653, 347306, 520959, 694612, 868265, 1041918, 1562877, 1736530, 2083836, 2604795, 3125754, 3473060, 5209590, 6251508, 7814385, 10419180, 15628770, 31257540]

約数ペア:

[(1, 31257540), (2, 15628770), (3, 10419180), (4, 7814385), (5, 6251508), (6, 5209590), (9, 3473060), (10, 3125754), (12, 2604795), (15, 2083836), (18, 1736530), (20, 1562877), (30, 1041918), (36, 868265), (45, 694612), (60, 520959), (90, 347306), (180, 173653), (211, 148140), (422, 74070), (633, 49380), (823, 37980), (844, 37035), (1055, 29628), (1266, 24690), (1646, 18990), (1899, 16460), (2110, 14814), (2469, 12660), (2532, 12345), (3165, 9876), (3292, 9495), (3798, 8230), (4115, 7596), (4220, 7407), (4938, 6330)]