19784624

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{431}}^1$

素因数の和:609

約数の個数: 40

約数和(自身を含む): 40711680

約数和(自身を除く): 20927056

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 151, 152, 302, 304, 431, 604, 862, 1208, 1724, 2416, 2869, 3448, 5738, 6896, 8189, 11476, 16378, 22952, 32756, 45904, 65081, 65512, 130162, 131024, 260324, 520648, 1041296, 1236539, 2473078, 4946156, 9892312, 19784624]

約数ペア:

[(1, 19784624), (2, 9892312), (4, 4946156), (8, 2473078), (16, 1236539), (19, 1041296), (38, 520648), (76, 260324), (151, 131024), (152, 130162), (302, 65512), (304, 65081), (431, 45904), (604, 32756), (862, 22952), (1208, 16378), (1724, 11476), (2416, 8189), (2869, 6896), (3448, 5738)]