813308860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{63839}}^1$

素因数の和:63875

約数の個数: 72

約数和(自身を含む): 2139661440

約数和(自身を除く): 1326352580

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 182, 196, 245, 260, 364, 455, 490, 637, 910, 980, 1274, 1820, 2548, 3185, 6370, 12740, 63839, 127678, 255356, 319195, 446873, 638390, 829907, 893746, 1276780, 1659814, 1787492, 2234365, 3128111, 3319628, 4149535, 4468730, 5809349, 6256222, 8299070, 8937460, 11618698, 12512444, 15640555, 16598140, 23237396, 29046745, 31281110, 40665443, 58093490, 62562220, 81330886, 116186980, 162661772, 203327215, 406654430, 813308860]

約数ペア:

[(1, 813308860), (2, 406654430), (4, 203327215), (5, 162661772), (7, 116186980), (10, 81330886), (13, 62562220), (14, 58093490), (20, 40665443), (26, 31281110), (28, 29046745), (35, 23237396), (49, 16598140), (52, 15640555), (65, 12512444), (70, 11618698), (91, 8937460), (98, 8299070), (130, 6256222), (140, 5809349), (182, 4468730), (196, 4149535), (245, 3319628), (260, 3128111), (364, 2234365), (455, 1787492), (490, 1659814), (637, 1276780), (910, 893746), (980, 829907), (1274, 638390), (1820, 446873), (2548, 319195), (3185, 255356), (6370, 127678), (12740, 63839)]