18106160

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{2543}}^1$

素因数の和:2645

約数の個数: 40

約数和(自身を含む): 42586560

約数和(自身を除く): 24480400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 2543, 3560, 5086, 7120, 10172, 12715, 20344, 25430, 40688, 50860, 101720, 203440, 226327, 452654, 905308, 1131635, 1810616, 2263270, 3621232, 4526540, 9053080, 18106160]

約数ペア:

[(1, 18106160), (2, 9053080), (4, 4526540), (5, 3621232), (8, 2263270), (10, 1810616), (16, 1131635), (20, 905308), (40, 452654), (80, 226327), (89, 203440), (178, 101720), (356, 50860), (445, 40688), (712, 25430), (890, 20344), (1424, 12715), (1780, 10172), (2543, 7120), (3560, 5086)]