42149780

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{34549}}^1$

素因数の和:34619

約数の個数: 24

約数和(自身を含む): 89968200

約数和(自身を除く): 47818420

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 34549, 69098, 138196, 172745, 345490, 690980, 2107489, 4214978, 8429956, 10537445, 21074890, 42149780]

約数ペア:

[(1, 42149780), (2, 21074890), (4, 10537445), (5, 8429956), (10, 4214978), (20, 2107489), (61, 690980), (122, 345490), (244, 172745), (305, 138196), (610, 69098), (1220, 34549)]