30789220

素因数分解:

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

素因数の和:20020

約数の個数: 48

約数和(自身を含む): 80615808

約数和(自身を除く): 49826588

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 19993, 39986, 79972, 99965, 139951, 199930, 219923, 279902, 399860, 439846, 559804, 699755, 879692, 1099615, 1399510, 1539461, 2199230, 2799020, 3078922, 4398460, 6157844, 7697305, 15394610, 30789220]

約数ペア:

[(1, 30789220), (2, 15394610), (4, 7697305), (5, 6157844), (7, 4398460), (10, 3078922), (11, 2799020), (14, 2199230), (20, 1539461), (22, 1399510), (28, 1099615), (35, 879692), (44, 699755), (55, 559804), (70, 439846), (77, 399860), (110, 279902), (140, 219923), (154, 199930), (220, 139951), (308, 99965), (385, 79972), (770, 39986), (1540, 19993)]