278364879

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{223}}^1\times {\mathrm{227}}^1$

素因数の和:516

約数の個数: 48

約数和(自身を含む): 446164992

約数和(自身を除く): 167800113

約数列:

[1, 3, 9, 13, 39, 47, 117, 141, 223, 227, 423, 611, 669, 681, 1833, 2007, 2043, 2899, 2951, 5499, 8697, 8853, 10481, 10669, 26091, 26559, 31443, 32007, 50621, 94329, 96021, 136253, 138697, 151863, 408759, 416091, 455589, 658073, 1226277, 1248273, 1974219, 2379187, 5922657, 7137561, 21412683, 30929431, 92788293, 278364879]

約数ペア:

[(1, 278364879), (3, 92788293), (9, 30929431), (13, 21412683), (39, 7137561), (47, 5922657), (117, 2379187), (141, 1974219), (223, 1248273), (227, 1226277), (423, 658073), (611, 455589), (669, 416091), (681, 408759), (1833, 151863), (2007, 138697), (2043, 136253), (2899, 96021), (2951, 94329), (5499, 50621), (8697, 32007), (8853, 31443), (10481, 26559), (10669, 26091)]