291245990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{26501}}^1$

素因数の和:26672

約数の個数: 32

約数和(自身を含む): 602973504

約数和(自身を除く): 311727514

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 157, 314, 785, 1099, 1570, 2198, 5495, 10990, 26501, 53002, 132505, 185507, 265010, 371014, 927535, 1855070, 4160657, 8321314, 20803285, 29124599, 41606570, 58249198, 145622995, 291245990]

約数ペア:

[(1, 291245990), (2, 145622995), (5, 58249198), (7, 41606570), (10, 29124599), (14, 20803285), (35, 8321314), (70, 4160657), (157, 1855070), (314, 927535), (785, 371014), (1099, 265010), (1570, 185507), (2198, 132505), (5495, 53002), (10990, 26501)]