16561120

素因数分解:

$2^5\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1163}}^1$

素因数の和:1267

約数の個数: 48

約数和(自身を含む): 39599280

約数和(自身を除く): 23038160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 89, 160, 178, 356, 445, 712, 890, 1163, 1424, 1780, 2326, 2848, 3560, 4652, 5815, 7120, 9304, 11630, 14240, 18608, 23260, 37216, 46520, 93040, 103507, 186080, 207014, 414028, 517535, 828056, 1035070, 1656112, 2070140, 3312224, 4140280, 8280560, 16561120]

約数ペア:

[(1, 16561120), (2, 8280560), (4, 4140280), (5, 3312224), (8, 2070140), (10, 1656112), (16, 1035070), (20, 828056), (32, 517535), (40, 414028), (80, 207014), (89, 186080), (160, 103507), (178, 93040), (356, 46520), (445, 37216), (712, 23260), (890, 18608), (1163, 14240), (1424, 11630), (1780, 9304), (2326, 7120), (2848, 5815), (3560, 4652)]