487215

素因数分解:

$3^5\times 5^1\times {\mathrm{401}}^1$

素因数の和:421

約数の個数: 24

約数和(自身を含む): 877968

約数和(自身を除く): 390753

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 401, 405, 1203, 1215, 2005, 3609, 6015, 10827, 18045, 32481, 54135, 97443, 162405, 487215]

約数ペア:

[(1, 487215), (3, 162405), (5, 97443), (9, 54135), (15, 32481), (27, 18045), (45, 10827), (81, 6015), (135, 3609), (243, 2005), (401, 1215), (405, 1203)]