198649220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{128993}}^1$

素因数の和:129020

約数の個数: 48

約数和(自身を含む): 520103808

約数和(自身を除く): 321454588

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, 128993, 257986, 515972, 644965, 902951, 1289930, 1418923, 1805902, 2579860, 2837846, 3611804, 4514755, 5675692, 7094615, 9029510, 9932461, 14189230, 18059020, 19864922, 28378460, 39729844, 49662305, 99324610, 198649220]

約数ペア:

[(1, 198649220), (2, 99324610), (4, 49662305), (5, 39729844), (7, 28378460), (10, 19864922), (11, 18059020), (14, 14189230), (20, 9932461), (22, 9029510), (28, 7094615), (35, 5675692), (44, 4514755), (55, 3611804), (70, 2837846), (77, 2579860), (110, 1805902), (140, 1418923), (154, 1289930), (220, 902951), (308, 644965), (385, 515972), (770, 257986), (1540, 128993)]