28041900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{211}}^1\times {\mathrm{443}}^1$

素因数の和:671

約数の個数: 72

約数和(自身を含む): 81703104

約数和(自身を除く): 53661204

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 211, 300, 422, 443, 633, 844, 886, 1055, 1266, 1329, 1772, 2110, 2215, 2532, 2658, 3165, 4220, 4430, 5275, 5316, 6330, 6645, 8860, 10550, 11075, 12660, 13290, 15825, 21100, 22150, 26580, 31650, 33225, 44300, 63300, 66450, 93473, 132900, 186946, 280419, 373892, 467365, 560838, 934730, 1121676, 1402095, 1869460, 2336825, 2804190, 4673650, 5608380, 7010475, 9347300, 14020950, 28041900]

約数ペア:

[(1, 28041900), (2, 14020950), (3, 9347300), (4, 7010475), (5, 5608380), (6, 4673650), (10, 2804190), (12, 2336825), (15, 1869460), (20, 1402095), (25, 1121676), (30, 934730), (50, 560838), (60, 467365), (75, 373892), (100, 280419), (150, 186946), (211, 132900), (300, 93473), (422, 66450), (443, 63300), (633, 44300), (844, 33225), (886, 31650), (1055, 26580), (1266, 22150), (1329, 21100), (1772, 15825), (2110, 13290), (2215, 12660), (2532, 11075), (2658, 10550), (3165, 8860), (4220, 6645), (4430, 6330), (5275, 5316)]