205435920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{855983}}^1$

素因数の和:855999

約数の個数: 40

約数和(自身を含む): 636852096

約数和(自身を除く): 431416176

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 855983, 1711966, 2567949, 3423932, 4279915, 5135898, 6847864, 8559830, 10271796, 12839745, 13695728, 17119660, 20543592, 25679490, 34239320, 41087184, 51358980, 68478640, 102717960, 205435920]

約数ペア:

[(1, 205435920), (2, 102717960), (3, 68478640), (4, 51358980), (5, 41087184), (6, 34239320), (8, 25679490), (10, 20543592), (12, 17119660), (15, 13695728), (16, 12839745), (20, 10271796), (24, 8559830), (30, 6847864), (40, 5135898), (48, 4279915), (60, 3423932), (80, 2567949), (120, 1711966), (240, 855983)]