317081680

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{389}}^1\times {\mathrm{443}}^1$

素因数の和:868

約数の個数: 80

約数和(自身を含む): 772986240

約数和(自身を除く): 455904560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 389, 443, 460, 778, 886, 920, 1556, 1772, 1840, 1945, 2215, 3112, 3544, 3890, 4430, 6224, 7088, 7780, 8860, 8947, 10189, 15560, 17720, 17894, 20378, 31120, 35440, 35788, 40756, 44735, 50945, 71576, 81512, 89470, 101890, 143152, 163024, 172327, 178940, 203780, 344654, 357880, 407560, 689308, 715760, 815120, 861635, 1378616, 1723270, 2757232, 3446540, 3963521, 6893080, 7927042, 13786160, 15854084, 19817605, 31708168, 39635210, 63416336, 79270420, 158540840, 317081680]

約数ペア:

[(1, 317081680), (2, 158540840), (4, 79270420), (5, 63416336), (8, 39635210), (10, 31708168), (16, 19817605), (20, 15854084), (23, 13786160), (40, 7927042), (46, 6893080), (80, 3963521), (92, 3446540), (115, 2757232), (184, 1723270), (230, 1378616), (368, 861635), (389, 815120), (443, 715760), (460, 689308), (778, 407560), (886, 357880), (920, 344654), (1556, 203780), (1772, 178940), (1840, 172327), (1945, 163024), (2215, 143152), (3112, 101890), (3544, 89470), (3890, 81512), (4430, 71576), (6224, 50945), (7088, 44735), (7780, 40756), (8860, 35788), (8947, 35440), (10189, 31120), (15560, 20378), (17720, 17894)]