61578440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19993}}^1$

素因数の和:20022

約数の個数: 64

約数和(自身を含む): 172748160

約数和(自身を除く): 111169720

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 220, 280, 308, 385, 440, 616, 770, 1540, 3080, 19993, 39986, 79972, 99965, 139951, 159944, 199930, 219923, 279902, 399860, 439846, 559804, 699755, 799720, 879692, 1099615, 1119608, 1399510, 1539461, 1759384, 2199230, 2799020, 3078922, 4398460, 5598040, 6157844, 7697305, 8796920, 12315688, 15394610, 30789220, 61578440]

約数ペア:

[(1, 61578440), (2, 30789220), (4, 15394610), (5, 12315688), (7, 8796920), (8, 7697305), (10, 6157844), (11, 5598040), (14, 4398460), (20, 3078922), (22, 2799020), (28, 2199230), (35, 1759384), (40, 1539461), (44, 1399510), (55, 1119608), (56, 1099615), (70, 879692), (77, 799720), (88, 699755), (110, 559804), (140, 439846), (154, 399860), (220, 279902), (280, 219923), (308, 199930), (385, 159944), (440, 139951), (616, 99965), (770, 79972), (1540, 39986), (3080, 19993)]