19151720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{68399}}^1$

素因数の和:68417

約数の個数: 32

約数和(自身を含む): 49248000

約数和(自身を除く): 30096280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 68399, 136798, 273596, 341995, 478793, 547192, 683990, 957586, 1367980, 1915172, 2393965, 2735960, 3830344, 4787930, 9575860, 19151720]

約数ペア:

[(1, 19151720), (2, 9575860), (4, 4787930), (5, 3830344), (7, 2735960), (8, 2393965), (10, 1915172), (14, 1367980), (20, 957586), (28, 683990), (35, 547192), (40, 478793), (56, 341995), (70, 273596), (140, 136798), (280, 68399)]