215304885

素因数分解:

$3^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{11311}}^1$

素因数の和:11375

約数の個数: 40

約数和(自身を含む): 394200576

約数和(自身を除く): 178895691

約数列:

[1, 3, 5, 9, 15, 27, 45, 47, 81, 135, 141, 235, 405, 423, 705, 1269, 2115, 3807, 6345, 11311, 19035, 33933, 56555, 101799, 169665, 305397, 508995, 531617, 916191, 1526985, 1594851, 2658085, 4580955, 4784553, 7974255, 14353659, 23922765, 43060977, 71768295, 215304885]

約数ペア:

[(1, 215304885), (3, 71768295), (5, 43060977), (9, 23922765), (15, 14353659), (27, 7974255), (45, 4784553), (47, 4580955), (81, 2658085), (135, 1594851), (141, 1526985), (235, 916191), (405, 531617), (423, 508995), (705, 305397), (1269, 169665), (2115, 101799), (3807, 56555), (6345, 33933), (11311, 19035)]