639771610

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{1733}}^1$

素因数の和:1855

約数の個数: 64

約数和(自身を含む): 1273449600

約数和(自身を除く): 633677990

約数列:

[1, 2, 5, 10, 19, 29, 38, 58, 67, 95, 134, 145, 190, 290, 335, 551, 670, 1102, 1273, 1733, 1943, 2546, 2755, 3466, 3886, 5510, 6365, 8665, 9715, 12730, 17330, 19430, 32927, 36917, 50257, 65854, 73834, 100514, 116111, 164635, 184585, 232222, 251285, 329270, 369170, 502570, 580555, 954883, 1161110, 1909766, 2206109, 3367219, 4412218, 4774415, 6734438, 9548830, 11030545, 16836095, 22061090, 33672190, 63977161, 127954322, 319885805, 639771610]

約数ペア:

[(1, 639771610), (2, 319885805), (5, 127954322), (10, 63977161), (19, 33672190), (29, 22061090), (38, 16836095), (58, 11030545), (67, 9548830), (95, 6734438), (134, 4774415), (145, 4412218), (190, 3367219), (290, 2206109), (335, 1909766), (551, 1161110), (670, 954883), (1102, 580555), (1273, 502570), (1733, 369170), (1943, 329270), (2546, 251285), (2755, 232222), (3466, 184585), (3886, 164635), (5510, 116111), (6365, 100514), (8665, 73834), (9715, 65854), (12730, 50257), (17330, 36917), (19430, 32927)]