388959670

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{153739}}^1$

素因数の和:153780

約数の個数: 32

約数和(自身を含む): 796988160

約数和(自身を除く): 408028490

約数列:

[1, 2, 5, 10, 11, 22, 23, 46, 55, 110, 115, 230, 253, 506, 1265, 2530, 153739, 307478, 768695, 1537390, 1691129, 3382258, 3535997, 7071994, 8455645, 16911290, 17679985, 35359970, 38895967, 77791934, 194479835, 388959670]

約数ペア:

[(1, 388959670), (2, 194479835), (5, 77791934), (10, 38895967), (11, 35359970), (22, 17679985), (23, 16911290), (46, 8455645), (55, 7071994), (110, 3535997), (115, 3382258), (230, 1691129), (253, 1537390), (506, 768695), (1265, 307478), (2530, 153739)]