19555680

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{311}}^1$

素因数の和:460

約数の個数: 96

約数和(自身を含む): 62270208

約数和(自身を除く): 42714528

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 131, 160, 240, 262, 311, 393, 480, 524, 622, 655, 786, 933, 1048, 1244, 1310, 1555, 1572, 1866, 1965, 2096, 2488, 2620, 3110, 3144, 3732, 3930, 4192, 4665, 4976, 5240, 6220, 6288, 7464, 7860, 9330, 9952, 10480, 12440, 12576, 14928, 15720, 18660, 20960, 24880, 29856, 31440, 37320, 40741, 49760, 62880, 74640, 81482, 122223, 149280, 162964, 203705, 244446, 325928, 407410, 488892, 611115, 651856, 814820, 977784, 1222230, 1303712, 1629640, 1955568, 2444460, 3259280, 3911136, 4888920, 6518560, 9777840, 19555680]

約数ペア:

[(1, 19555680), (2, 9777840), (3, 6518560), (4, 4888920), (5, 3911136), (6, 3259280), (8, 2444460), (10, 1955568), (12, 1629640), (15, 1303712), (16, 1222230), (20, 977784), (24, 814820), (30, 651856), (32, 611115), (40, 488892), (48, 407410), (60, 325928), (80, 244446), (96, 203705), (120, 162964), (131, 149280), (160, 122223), (240, 81482), (262, 74640), (311, 62880), (393, 49760), (480, 40741), (524, 37320), (622, 31440), (655, 29856), (786, 24880), (933, 20960), (1048, 18660), (1244, 15720), (1310, 14928), (1555, 12576), (1572, 12440), (1866, 10480), (1965, 9952), (2096, 9330), (2488, 7860), (2620, 7464), (3110, 6288), (3144, 6220), (3732, 5240), (3930, 4976), (4192, 4665)]