78698900

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{16061}}^1$

素因数の和:16089

約数の個数: 54

約数和(自身を含む): 198670878

約数和(自身を除く): 119971978

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 140, 175, 196, 245, 350, 490, 700, 980, 1225, 2450, 4900, 16061, 32122, 64244, 80305, 112427, 160610, 224854, 321220, 401525, 449708, 562135, 786989, 803050, 1124270, 1573978, 1606100, 2248540, 2810675, 3147956, 3934945, 5621350, 7869890, 11242700, 15739780, 19674725, 39349450, 78698900]

約数ペア:

[(1, 78698900), (2, 39349450), (4, 19674725), (5, 15739780), (7, 11242700), (10, 7869890), (14, 5621350), (20, 3934945), (25, 3147956), (28, 2810675), (35, 2248540), (49, 1606100), (50, 1573978), (70, 1124270), (98, 803050), (100, 786989), (140, 562135), (175, 449708), (196, 401525), (245, 321220), (350, 224854), (490, 160610), (700, 112427), (980, 80305), (1225, 64244), (2450, 32122), (4900, 16061)]