20766707745

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{727}}^1\times {\mathrm{1669}}^1$

素因数の和:2574

約数の個数: 64

約数和(自身を含む): 38281850880

約数和(自身を除く): 17515143135

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 163, 489, 727, 815, 1141, 1669, 2181, 2445, 3423, 3635, 5007, 5089, 5705, 8345, 10905, 11683, 15267, 17115, 25035, 25445, 35049, 58415, 76335, 118501, 175245, 272047, 355503, 592505, 816141, 829507, 1213363, 1360235, 1777515, 1904329, 2488521, 3640089, 4080705, 4147535, 5712987, 6066815, 8493541, 9521645, 12442605, 18200445, 25480623, 28564935, 42467705, 127403115, 197778169, 593334507, 988890845, 1384447183, 2966672535, 4153341549, 6922235915, 20766707745]

約数ペア:

[(1, 20766707745), (3, 6922235915), (5, 4153341549), (7, 2966672535), (15, 1384447183), (21, 988890845), (35, 593334507), (105, 197778169), (163, 127403115), (489, 42467705), (727, 28564935), (815, 25480623), (1141, 18200445), (1669, 12442605), (2181, 9521645), (2445, 8493541), (3423, 6066815), (3635, 5712987), (5007, 4147535), (5089, 4080705), (5705, 3640089), (8345, 2488521), (10905, 1904329), (11683, 1777515), (15267, 1360235), (17115, 1213363), (25035, 829507), (25445, 816141), (35049, 592505), (58415, 355503), (76335, 272047), (118501, 175245)]