198020900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{25717}}^1$

素因数の和:25749

約数の個数: 72

約数和(自身を含む): 535757376

約数和(自身を除く): 337736476

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 25, 28, 35, 44, 50, 55, 70, 77, 100, 110, 140, 154, 175, 220, 275, 308, 350, 385, 550, 700, 770, 1100, 1540, 1925, 3850, 7700, 25717, 51434, 102868, 128585, 180019, 257170, 282887, 360038, 514340, 565774, 642925, 720076, 900095, 1131548, 1285850, 1414435, 1800190, 1980209, 2571700, 2828870, 3600380, 3960418, 4500475, 5657740, 7072175, 7920836, 9000950, 9901045, 14144350, 18001900, 19802090, 28288700, 39604180, 49505225, 99010450, 198020900]

約数ペア:

[(1, 198020900), (2, 99010450), (4, 49505225), (5, 39604180), (7, 28288700), (10, 19802090), (11, 18001900), (14, 14144350), (20, 9901045), (22, 9000950), (25, 7920836), (28, 7072175), (35, 5657740), (44, 4500475), (50, 3960418), (55, 3600380), (70, 2828870), (77, 2571700), (100, 1980209), (110, 1800190), (140, 1414435), (154, 1285850), (175, 1131548), (220, 900095), (275, 720076), (308, 642925), (350, 565774), (385, 514340), (550, 360038), (700, 282887), (770, 257170), (1100, 180019), (1540, 128585), (1925, 102868), (3850, 51434), (7700, 25717)]