26988220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{27539}}^1$

素因数の和:27562

約数の個数: 36

約数和(自身を含む): 65930760

約数和(自身を除く): 38942540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 27539, 55078, 110156, 137695, 192773, 275390, 385546, 550780, 771092, 963865, 1349411, 1927730, 2698822, 3855460, 5397644, 6747055, 13494110, 26988220]

約数ペア:

[(1, 26988220), (2, 13494110), (4, 6747055), (5, 5397644), (7, 3855460), (10, 2698822), (14, 1927730), (20, 1349411), (28, 963865), (35, 771092), (49, 550780), (70, 385546), (98, 275390), (140, 192773), (196, 137695), (245, 110156), (490, 55078), (980, 27539)]