164785720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{1567}}^1$

素因数の和:1828

約数の個数: 64

約数和(自身を含む): 406425600

約数和(自身を除く): 241639880

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 239, 440, 478, 956, 1195, 1567, 1912, 2390, 2629, 3134, 4780, 5258, 6268, 7835, 9560, 10516, 12536, 13145, 15670, 17237, 21032, 26290, 31340, 34474, 52580, 62680, 68948, 86185, 105160, 137896, 172370, 344740, 374513, 689480, 749026, 1498052, 1872565, 2996104, 3745130, 4119643, 7490260, 8239286, 14980520, 16478572, 20598215, 32957144, 41196430, 82392860, 164785720]

約数ペア:

[(1, 164785720), (2, 82392860), (4, 41196430), (5, 32957144), (8, 20598215), (10, 16478572), (11, 14980520), (20, 8239286), (22, 7490260), (40, 4119643), (44, 3745130), (55, 2996104), (88, 1872565), (110, 1498052), (220, 749026), (239, 689480), (440, 374513), (478, 344740), (956, 172370), (1195, 137896), (1567, 105160), (1912, 86185), (2390, 68948), (2629, 62680), (3134, 52580), (4780, 34474), (5258, 31340), (6268, 26290), (7835, 21032), (9560, 17237), (10516, 15670), (12536, 13145)]