20276336

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{491}}^1$

素因数の和:617

約数の個数: 40

約数和(自身を含む): 41180400

約数和(自身を除く): 20904064

約数列:

[1, 2, 4, 8, 16, 29, 58, 89, 116, 178, 232, 356, 464, 491, 712, 982, 1424, 1964, 2581, 3928, 5162, 7856, 10324, 14239, 20648, 28478, 41296, 43699, 56956, 87398, 113912, 174796, 227824, 349592, 699184, 1267271, 2534542, 5069084, 10138168, 20276336]

約数ペア:

[(1, 20276336), (2, 10138168), (4, 5069084), (8, 2534542), (16, 1267271), (29, 699184), (58, 349592), (89, 227824), (116, 174796), (178, 113912), (232, 87398), (356, 56956), (464, 43699), (491, 41296), (712, 28478), (982, 20648), (1424, 14239), (1964, 10324), (2581, 7856), (3928, 5162)]