521109820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{338383}}^1$

素因数の和:338410

約数の個数: 48

約数和(自身を含む): 1364364288

約数和(自身を除く): 843254468

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, 338383, 676766, 1353532, 1691915, 2368681, 3383830, 3722213, 4737362, 6767660, 7444426, 9474724, 11843405, 14888852, 18611065, 23686810, 26055491, 37222130, 47373620, 52110982, 74444260, 104221964, 130277455, 260554910, 521109820]

約数ペア:

[(1, 521109820), (2, 260554910), (4, 130277455), (5, 104221964), (7, 74444260), (10, 52110982), (11, 47373620), (14, 37222130), (20, 26055491), (22, 23686810), (28, 18611065), (35, 14888852), (44, 11843405), (55, 9474724), (70, 7444426), (77, 6767660), (110, 4737362), (140, 3722213), (154, 3383830), (220, 2368681), (308, 1691915), (385, 1353532), (770, 676766), (1540, 338383)]