81321120

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{56473}}^1$

素因数の和:56494

約数の個数: 72

約数和(自身を含む): 277513236

約数和(自身を除く): 196192116

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 56473, 112946, 169419, 225892, 282365, 338838, 451784, 508257, 564730, 677676, 847095, 903568, 1016514, 1129460, 1355352, 1694190, 1807136, 2033028, 2258920, 2541285, 2710704, 3388380, 4066056, 4517840, 5082570, 5421408, 6776760, 8132112, 9035680, 10165140, 13553520, 16264224, 20330280, 27107040, 40660560, 81321120]

約数ペア:

[(1, 81321120), (2, 40660560), (3, 27107040), (4, 20330280), (5, 16264224), (6, 13553520), (8, 10165140), (9, 9035680), (10, 8132112), (12, 6776760), (15, 5421408), (16, 5082570), (18, 4517840), (20, 4066056), (24, 3388380), (30, 2710704), (32, 2541285), (36, 2258920), (40, 2033028), (45, 1807136), (48, 1694190), (60, 1355352), (72, 1129460), (80, 1016514), (90, 903568), (96, 847095), (120, 677676), (144, 564730), (160, 508257), (180, 451784), (240, 338838), (288, 282365), (360, 225892), (480, 169419), (720, 112946), (1440, 56473)]