128220645

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{64271}}^1$

素因数の和:64305

約数の個数: 32

約数和(自身を含む): 246804480

約数和(自身を除く): 118583835

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 95, 105, 133, 285, 399, 665, 1995, 64271, 192813, 321355, 449897, 964065, 1221149, 1349691, 2249485, 3663447, 6105745, 6748455, 8548043, 18317235, 25644129, 42740215, 128220645]

約数ペア:

[(1, 128220645), (3, 42740215), (5, 25644129), (7, 18317235), (15, 8548043), (19, 6748455), (21, 6105745), (35, 3663447), (57, 2249485), (95, 1349691), (105, 1221149), (133, 964065), (285, 449897), (399, 321355), (665, 192813), (1995, 64271)]