134720420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1\times {\mathrm{1103}}^1$

素因数の和:1340

約数の個数: 48

約数和(自身を含む): 293787648

約数和(自身を除く): 159067228

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 197, 310, 394, 620, 788, 985, 1103, 1970, 2206, 3940, 4412, 5515, 6107, 11030, 12214, 22060, 24428, 30535, 34193, 61070, 68386, 122140, 136772, 170965, 217291, 341930, 434582, 683860, 869164, 1086455, 2172910, 4345820, 6736021, 13472042, 26944084, 33680105, 67360210, 134720420]

約数ペア:

[(1, 134720420), (2, 67360210), (4, 33680105), (5, 26944084), (10, 13472042), (20, 6736021), (31, 4345820), (62, 2172910), (124, 1086455), (155, 869164), (197, 683860), (310, 434582), (394, 341930), (620, 217291), (788, 170965), (985, 136772), (1103, 122140), (1970, 68386), (2206, 61070), (3940, 34193), (4412, 30535), (5515, 24428), (6107, 22060), (11030, 12214)]