122140

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1$

素因数の和:237

約数の個数: 24

約数和(自身を含む): 266112

約数和(自身を除く): 143972

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 197, 310, 394, 620, 788, 985, 1970, 3940, 6107, 12214, 24428, 30535, 61070, 122140]

約数ペア:

[(1, 122140), (2, 61070), (4, 30535), (5, 24428), (10, 12214), (20, 6107), (31, 3940), (62, 1970), (124, 985), (155, 788), (197, 620), (310, 394)]