419620220

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{343951}}^1$

素因数の和:344021

約数の個数: 24

約数和(自身を含む): 895651008

約数和(自身を除く): 476030788

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 343951, 687902, 1375804, 1719755, 3439510, 6879020, 20981011, 41962022, 83924044, 104905055, 209810110, 419620220]

約数ペア:

[(1, 419620220), (2, 209810110), (4, 104905055), (5, 83924044), (10, 41962022), (20, 20981011), (61, 6879020), (122, 3439510), (244, 1719755), (305, 1375804), (610, 687902), (1220, 343951)]