72209720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{164113}}^1$

素因数の和:164135

約数の個数: 32

約数和(自身を含む): 177243120

約数和(自身を除く): 105033400

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 164113, 328226, 656452, 820565, 1312904, 1641130, 1805243, 3282260, 3610486, 6564520, 7220972, 9026215, 14441944, 18052430, 36104860, 72209720]

約数ペア:

[(1, 72209720), (2, 36104860), (4, 18052430), (5, 14441944), (8, 9026215), (10, 7220972), (11, 6564520), (20, 3610486), (22, 3282260), (40, 1805243), (44, 1641130), (55, 1312904), (88, 820565), (110, 656452), (220, 328226), (440, 164113)]