128141860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{11887}}^1$

素因数の和:11921

約数の個数: 72

約数和(自身を含む): 341518464

約数和(自身を除く): 213376604

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 308, 385, 490, 539, 770, 980, 1078, 1540, 2156, 2695, 5390, 10780, 11887, 23774, 47548, 59435, 83209, 118870, 130757, 166418, 237740, 261514, 332836, 416045, 523028, 582463, 653785, 832090, 915299, 1164926, 1307570, 1664180, 1830598, 2329852, 2615140, 2912315, 3661196, 4576495, 5824630, 6407093, 9152990, 11649260, 12814186, 18305980, 25628372, 32035465, 64070930, 128141860]

約数ペア:

[(1, 128141860), (2, 64070930), (4, 32035465), (5, 25628372), (7, 18305980), (10, 12814186), (11, 11649260), (14, 9152990), (20, 6407093), (22, 5824630), (28, 4576495), (35, 3661196), (44, 2912315), (49, 2615140), (55, 2329852), (70, 1830598), (77, 1664180), (98, 1307570), (110, 1164926), (140, 915299), (154, 832090), (196, 653785), (220, 582463), (245, 523028), (308, 416045), (385, 332836), (490, 261514), (539, 237740), (770, 166418), (980, 130757), (1078, 118870), (1540, 83209), (2156, 59435), (2695, 47548), (5390, 23774), (10780, 11887)]