521765720

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{509}}^1\times {\mathrm{523}}^1$

素因数の和:1057

約数の個数: 96

約数和(自身を含む): 1370941200

約数和(自身を除く): 849175480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 509, 523, 980, 1018, 1046, 1960, 2036, 2092, 2545, 2615, 3563, 3661, 4072, 4184, 5090, 5230, 7126, 7322, 10180, 10460, 14252, 14644, 17815, 18305, 20360, 20920, 24941, 25627, 28504, 29288, 35630, 36610, 49882, 51254, 71260, 73220, 99764, 102508, 124705, 128135, 142520, 146440, 199528, 205016, 249410, 256270, 266207, 498820, 512540, 532414, 997640, 1025080, 1064828, 1331035, 1863449, 2129656, 2662070, 3726898, 5324140, 7453796, 9317245, 10648280, 13044143, 14907592, 18634490, 26088286, 37268980, 52176572, 65220715, 74537960, 104353144, 130441430, 260882860, 521765720]

約数ペア:

[(1, 521765720), (2, 260882860), (4, 130441430), (5, 104353144), (7, 74537960), (8, 65220715), (10, 52176572), (14, 37268980), (20, 26088286), (28, 18634490), (35, 14907592), (40, 13044143), (49, 10648280), (56, 9317245), (70, 7453796), (98, 5324140), (140, 3726898), (196, 2662070), (245, 2129656), (280, 1863449), (392, 1331035), (490, 1064828), (509, 1025080), (523, 997640), (980, 532414), (1018, 512540), (1046, 498820), (1960, 266207), (2036, 256270), (2092, 249410), (2545, 205016), (2615, 199528), (3563, 146440), (3661, 142520), (4072, 128135), (4184, 124705), (5090, 102508), (5230, 99764), (7126, 73220), (7322, 71260), (10180, 51254), (10460, 49882), (14252, 36610), (14644, 35630), (17815, 29288), (18305, 28504), (20360, 25627), (20920, 24941)]