181195120

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{52673}}^1$

素因数の和:52729

約数の個数: 40

約数和(自身を含む): 431084016

約数和(自身を除く): 249888896

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 52673, 105346, 210692, 263365, 421384, 526730, 842768, 1053460, 2106920, 2264939, 4213840, 4529878, 9059756, 11324695, 18119512, 22649390, 36239024, 45298780, 90597560, 181195120]

約数ペア:

[(1, 181195120), (2, 90597560), (4, 45298780), (5, 36239024), (8, 22649390), (10, 18119512), (16, 11324695), (20, 9059756), (40, 4529878), (43, 4213840), (80, 2264939), (86, 2106920), (172, 1053460), (215, 842768), (344, 526730), (430, 421384), (688, 263365), (860, 210692), (1720, 105346), (3440, 52673)]