220169980

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{3343}}^1$

素因数の和:3478

約数の個数: 48

約数和(自身を含む): 480332160

約数和(自身を除く): 260162180

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 89, 148, 178, 185, 356, 370, 445, 740, 890, 1780, 3293, 3343, 6586, 6686, 13172, 13372, 16465, 16715, 32930, 33430, 65860, 66860, 123691, 247382, 297527, 494764, 595054, 618455, 1190108, 1236910, 1487635, 2473820, 2975270, 5950540, 11008499, 22016998, 44033996, 55042495, 110084990, 220169980]

約数ペア:

[(1, 220169980), (2, 110084990), (4, 55042495), (5, 44033996), (10, 22016998), (20, 11008499), (37, 5950540), (74, 2975270), (89, 2473820), (148, 1487635), (178, 1236910), (185, 1190108), (356, 618455), (370, 595054), (445, 494764), (740, 297527), (890, 247382), (1780, 123691), (3293, 66860), (3343, 65860), (6586, 33430), (6686, 32930), (13172, 16715), (13372, 16465)]