4286780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{389}}^1$

素因数の和:446

約数の個数: 48

約数和(自身を含む): 9828000

約数和(自身を除く): 5541220

約数列:

[1, 2, 4, 5, 10, 19, 20, 29, 38, 58, 76, 95, 116, 145, 190, 290, 380, 389, 551, 580, 778, 1102, 1556, 1945, 2204, 2755, 3890, 5510, 7391, 7780, 11020, 11281, 14782, 22562, 29564, 36955, 45124, 56405, 73910, 112810, 147820, 214339, 225620, 428678, 857356, 1071695, 2143390, 4286780]

約数ペア:

[(1, 4286780), (2, 2143390), (4, 1071695), (5, 857356), (10, 428678), (19, 225620), (20, 214339), (29, 147820), (38, 112810), (58, 73910), (76, 56405), (95, 45124), (116, 36955), (145, 29564), (190, 22562), (290, 14782), (380, 11281), (389, 11020), (551, 7780), (580, 7391), (778, 5510), (1102, 3890), (1556, 2755), (1945, 2204)]