21684720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{90353}}^1$

素因数の和:90369

約数の個数: 40

約数和(自身を含む): 67223376

約数和(自身を除く): 45538656

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 90353, 180706, 271059, 361412, 451765, 542118, 722824, 903530, 1084236, 1355295, 1445648, 1807060, 2168472, 2710590, 3614120, 4336944, 5421180, 7228240, 10842360, 21684720]

約数ペア:

[(1, 21684720), (2, 10842360), (3, 7228240), (4, 5421180), (5, 4336944), (6, 3614120), (8, 2710590), (10, 2168472), (12, 1807060), (15, 1445648), (16, 1355295), (20, 1084236), (24, 903530), (30, 722824), (40, 542118), (48, 451765), (60, 361412), (80, 271059), (120, 180706), (240, 90353)]