3947900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1$

素因数の和:159

約数の個数: 72

約数和(自身を含む): 9697296

約数和(自身を除く): 5749396

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 37, 44, 50, 55, 74, 97, 100, 110, 148, 185, 194, 220, 275, 370, 388, 407, 485, 550, 740, 814, 925, 970, 1067, 1100, 1628, 1850, 1940, 2035, 2134, 2425, 3589, 3700, 4070, 4268, 4850, 5335, 7178, 8140, 9700, 10175, 10670, 14356, 17945, 20350, 21340, 26675, 35890, 39479, 40700, 53350, 71780, 78958, 89725, 106700, 157916, 179450, 197395, 358900, 394790, 789580, 986975, 1973950, 3947900]

約数ペア:

[(1, 3947900), (2, 1973950), (4, 986975), (5, 789580), (10, 394790), (11, 358900), (20, 197395), (22, 179450), (25, 157916), (37, 106700), (44, 89725), (50, 78958), (55, 71780), (74, 53350), (97, 40700), (100, 39479), (110, 35890), (148, 26675), (185, 21340), (194, 20350), (220, 17945), (275, 14356), (370, 10670), (388, 10175), (407, 9700), (485, 8140), (550, 7178), (740, 5335), (814, 4850), (925, 4268), (970, 4070), (1067, 3700), (1100, 3589), (1628, 2425), (1850, 2134), (1940, 2035)]