80514180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{911}}^1$

素因数の和:1417

約数の個数: 72

約数和(自身を含む): 244992384

約数和(自身を除く): 164478204

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 491, 911, 982, 1473, 1822, 1964, 2455, 2733, 2946, 3644, 4419, 4555, 4910, 5466, 5892, 7365, 8199, 8838, 9110, 9820, 10932, 13665, 14730, 16398, 17676, 18220, 22095, 27330, 29460, 32796, 40995, 44190, 54660, 81990, 88380, 163980, 447301, 894602, 1341903, 1789204, 2236505, 2683806, 4025709, 4473010, 5367612, 6709515, 8051418, 8946020, 13419030, 16102836, 20128545, 26838060, 40257090, 80514180]

約数ペア:

[(1, 80514180), (2, 40257090), (3, 26838060), (4, 20128545), (5, 16102836), (6, 13419030), (9, 8946020), (10, 8051418), (12, 6709515), (15, 5367612), (18, 4473010), (20, 4025709), (30, 2683806), (36, 2236505), (45, 1789204), (60, 1341903), (90, 894602), (180, 447301), (491, 163980), (911, 88380), (982, 81990), (1473, 54660), (1822, 44190), (1964, 40995), (2455, 32796), (2733, 29460), (2946, 27330), (3644, 22095), (4419, 18220), (4555, 17676), (4910, 16398), (5466, 14730), (5892, 13665), (7365, 10932), (8199, 9820), (8838, 9110)]