84205180

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1\times {\mathrm{547}}^1$

素因数の和:778

約数の個数: 48

約数和(自身を含む): 182286720

約数和(自身を除く): 98081540

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 179, 215, 358, 430, 547, 716, 860, 895, 1094, 1790, 2188, 2735, 3580, 5470, 7697, 10940, 15394, 23521, 30788, 38485, 47042, 76970, 94084, 97913, 117605, 153940, 195826, 235210, 391652, 470420, 489565, 979130, 1958260, 4210259, 8420518, 16841036, 21051295, 42102590, 84205180]

約数ペア:

[(1, 84205180), (2, 42102590), (4, 21051295), (5, 16841036), (10, 8420518), (20, 4210259), (43, 1958260), (86, 979130), (172, 489565), (179, 470420), (215, 391652), (358, 235210), (430, 195826), (547, 153940), (716, 117605), (860, 97913), (895, 94084), (1094, 76970), (1790, 47042), (2188, 38485), (2735, 30788), (3580, 23521), (5470, 15394), (7697, 10940)]