289399990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{257}}^1\times {\mathrm{353}}^1$

素因数の和:657

約数の個数: 64

約数和(自身を含む): 591831360

約数和(自身を除く): 302431370

約数列:

[1, 2, 5, 10, 11, 22, 29, 55, 58, 110, 145, 257, 290, 319, 353, 514, 638, 706, 1285, 1595, 1765, 2570, 2827, 3190, 3530, 3883, 5654, 7453, 7766, 10237, 14135, 14906, 19415, 20474, 28270, 37265, 38830, 51185, 74530, 81983, 90721, 102370, 112607, 163966, 181442, 225214, 409915, 453605, 563035, 819830, 907210, 997931, 1126070, 1995862, 2630909, 4989655, 5261818, 9979310, 13154545, 26309090, 28939999, 57879998, 144699995, 289399990]

約数ペア:

[(1, 289399990), (2, 144699995), (5, 57879998), (10, 28939999), (11, 26309090), (22, 13154545), (29, 9979310), (55, 5261818), (58, 4989655), (110, 2630909), (145, 1995862), (257, 1126070), (290, 997931), (319, 907210), (353, 819830), (514, 563035), (638, 453605), (706, 409915), (1285, 225214), (1595, 181442), (1765, 163966), (2570, 112607), (2827, 102370), (3190, 90721), (3530, 81983), (3883, 74530), (5654, 51185), (7453, 38830), (7766, 37265), (10237, 28270), (14135, 20474), (14906, 19415)]