129397120

素因数分解:

$2^7\times 5^1\times {\mathrm{202183}}^1$

素因数の和:202202

約数の個数: 32

約数和(自身を含む): 309341520

約数和(自身を除く): 179944400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 202183, 404366, 808732, 1010915, 1617464, 2021830, 3234928, 4043660, 6469856, 8087320, 12939712, 16174640, 25879424, 32349280, 64698560, 129397120]

約数ペア:

[(1, 129397120), (2, 64698560), (4, 32349280), (5, 25879424), (8, 16174640), (10, 12939712), (16, 8087320), (20, 6469856), (32, 4043660), (40, 3234928), (64, 2021830), (80, 1617464), (128, 1010915), (160, 808732), (320, 404366), (640, 202183)]