689877580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{1373}}^1$

素因数の和:1523

約数の個数: 96

約数和(自身を含む): 1719236736

約数和(自身を除く): 1029359156

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 70, 74, 97, 140, 148, 185, 194, 259, 370, 388, 485, 518, 679, 740, 970, 1036, 1295, 1358, 1373, 1940, 2590, 2716, 2746, 3395, 3589, 5180, 5492, 6790, 6865, 7178, 9611, 13580, 13730, 14356, 17945, 19222, 25123, 27460, 35890, 38444, 48055, 50246, 50801, 71780, 96110, 100492, 101602, 125615, 133181, 192220, 203204, 251230, 254005, 266362, 355607, 502460, 508010, 532724, 665905, 711214, 932267, 1016020, 1331810, 1422428, 1778035, 1864534, 2663620, 3556070, 3729068, 4661335, 4927697, 7112140, 9322670, 9855394, 18645340, 19710788, 24638485, 34493879, 49276970, 68987758, 98553940, 137975516, 172469395, 344938790, 689877580]

約数ペア:

[(1, 689877580), (2, 344938790), (4, 172469395), (5, 137975516), (7, 98553940), (10, 68987758), (14, 49276970), (20, 34493879), (28, 24638485), (35, 19710788), (37, 18645340), (70, 9855394), (74, 9322670), (97, 7112140), (140, 4927697), (148, 4661335), (185, 3729068), (194, 3556070), (259, 2663620), (370, 1864534), (388, 1778035), (485, 1422428), (518, 1331810), (679, 1016020), (740, 932267), (970, 711214), (1036, 665905), (1295, 532724), (1358, 508010), (1373, 502460), (1940, 355607), (2590, 266362), (2716, 254005), (2746, 251230), (3395, 203204), (3589, 192220), (5180, 133181), (5492, 125615), (6790, 101602), (6865, 100492), (7178, 96110), (9611, 71780), (13580, 50801), (13730, 50246), (14356, 48055), (17945, 38444), (19222, 35890), (25123, 27460)]