642195890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{9174227}}^1$

素因数の和:9174241

約数の個数: 16

約数和(自身を含む): 1321088832

約数和(自身を除く): 678892942

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 9174227, 18348454, 45871135, 64219589, 91742270, 128439178, 321097945, 642195890]

約数ペア:

[(1, 642195890), (2, 321097945), (5, 128439178), (7, 91742270), (10, 64219589), (14, 45871135), (35, 18348454), (70, 9174227)]