320116520

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{195193}}^1$

素因数の和:195245

約数の個数: 32

約数和(自身を含む): 737833320

約数和(自身を除く): 417716800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 195193, 390386, 780772, 975965, 1561544, 1951930, 3903860, 7807720, 8002913, 16005826, 32011652, 40014565, 64023304, 80029130, 160058260, 320116520]

約数ペア:

[(1, 320116520), (2, 160058260), (4, 80029130), (5, 64023304), (8, 40014565), (10, 32011652), (20, 16005826), (40, 8002913), (41, 7807720), (82, 3903860), (164, 1951930), (205, 1561544), (328, 975965), (410, 780772), (820, 390386), (1640, 195193)]