18648180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{491}}^1$

素因数の和:717

約数の個数: 72

約数和(自身を含む): 56949984

約数和(自身を除く): 38301804

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 211, 422, 491, 633, 844, 982, 1055, 1266, 1473, 1899, 1964, 2110, 2455, 2532, 2946, 3165, 3798, 4220, 4419, 4910, 5892, 6330, 7365, 7596, 8838, 9495, 9820, 12660, 14730, 17676, 18990, 22095, 29460, 37980, 44190, 88380, 103601, 207202, 310803, 414404, 518005, 621606, 932409, 1036010, 1243212, 1554015, 1864818, 2072020, 3108030, 3729636, 4662045, 6216060, 9324090, 18648180]

約数ペア:

[(1, 18648180), (2, 9324090), (3, 6216060), (4, 4662045), (5, 3729636), (6, 3108030), (9, 2072020), (10, 1864818), (12, 1554015), (15, 1243212), (18, 1036010), (20, 932409), (30, 621606), (36, 518005), (45, 414404), (60, 310803), (90, 207202), (180, 103601), (211, 88380), (422, 44190), (491, 37980), (633, 29460), (844, 22095), (982, 18990), (1055, 17676), (1266, 14730), (1473, 12660), (1899, 9820), (1964, 9495), (2110, 8838), (2455, 7596), (2532, 7365), (2946, 6330), (3165, 5892), (3798, 4910), (4220, 4419)]