289354120

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{457}}^1\times {\mathrm{1439}}^1$

素因数の和:1918

約数の個数: 64

約数和(自身を含む): 712281600

約数和(自身を除く): 422927480

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 457, 914, 1439, 1828, 2285, 2878, 3656, 4570, 5027, 5756, 7195, 9140, 10054, 11512, 14390, 15829, 18280, 20108, 25135, 28780, 31658, 40216, 50270, 57560, 63316, 79145, 100540, 126632, 158290, 201080, 316580, 633160, 657623, 1315246, 2630492, 3288115, 5260984, 6576230, 7233853, 13152460, 14467706, 26304920, 28935412, 36169265, 57870824, 72338530, 144677060, 289354120]

約数ペア:

[(1, 289354120), (2, 144677060), (4, 72338530), (5, 57870824), (8, 36169265), (10, 28935412), (11, 26304920), (20, 14467706), (22, 13152460), (40, 7233853), (44, 6576230), (55, 5260984), (88, 3288115), (110, 2630492), (220, 1315246), (440, 657623), (457, 633160), (914, 316580), (1439, 201080), (1828, 158290), (2285, 126632), (2878, 100540), (3656, 79145), (4570, 63316), (5027, 57560), (5756, 50270), (7195, 40216), (9140, 31658), (10054, 28780), (11512, 25135), (14390, 20108), (15829, 18280)]