179900980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{863}}^1\times {\mathrm{1489}}^1$

素因数の和:2368

約数の個数: 48

約数和(自身を含む): 432552960

約数和(自身を除く): 252651980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 863, 1489, 1726, 2978, 3452, 4315, 5956, 6041, 7445, 8630, 10423, 12082, 14890, 17260, 20846, 24164, 29780, 30205, 41692, 52115, 60410, 104230, 120820, 208460, 1285007, 2570014, 5140028, 6425035, 8995049, 12850070, 17990098, 25700140, 35980196, 44975245, 89950490, 179900980]

約数ペア:

[(1, 179900980), (2, 89950490), (4, 44975245), (5, 35980196), (7, 25700140), (10, 17990098), (14, 12850070), (20, 8995049), (28, 6425035), (35, 5140028), (70, 2570014), (140, 1285007), (863, 208460), (1489, 120820), (1726, 104230), (2978, 60410), (3452, 52115), (4315, 41692), (5956, 30205), (6041, 29780), (7445, 24164), (8630, 20846), (10423, 17260), (12082, 14890)]