128489300

素因数分解:

$2^2\times 5^2\times {\mathrm{89}}^1\times {\mathrm{14437}}^1$

素因数の和:14540

約数の個数: 36

約数和(自身を含む): 281974140

約数和(自身を除く): 153484840

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 89, 100, 178, 356, 445, 890, 1780, 2225, 4450, 8900, 14437, 28874, 57748, 72185, 144370, 288740, 360925, 721850, 1284893, 1443700, 2569786, 5139572, 6424465, 12848930, 25697860, 32122325, 64244650, 128489300]

約数ペア:

[(1, 128489300), (2, 64244650), (4, 32122325), (5, 25697860), (10, 12848930), (20, 6424465), (25, 5139572), (50, 2569786), (89, 1443700), (100, 1284893), (178, 721850), (356, 360925), (445, 288740), (890, 144370), (1780, 72185), (2225, 57748), (4450, 28874), (8900, 14437)]