65222020

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{1997}}^1$

素因数の和:2100

約数の個数: 48

約数和(自身を含む): 145006848

約数和(自身を除く): 79784828

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 71, 92, 115, 142, 230, 284, 355, 460, 710, 1420, 1633, 1997, 3266, 3994, 6532, 7988, 8165, 9985, 16330, 19970, 32660, 39940, 45931, 91862, 141787, 183724, 229655, 283574, 459310, 567148, 708935, 918620, 1417870, 2835740, 3261101, 6522202, 13044404, 16305505, 32611010, 65222020]

約数ペア:

[(1, 65222020), (2, 32611010), (4, 16305505), (5, 13044404), (10, 6522202), (20, 3261101), (23, 2835740), (46, 1417870), (71, 918620), (92, 708935), (115, 567148), (142, 459310), (230, 283574), (284, 229655), (355, 183724), (460, 141787), (710, 91862), (1420, 45931), (1633, 39940), (1997, 32660), (3266, 19970), (3994, 16330), (6532, 9985), (7988, 8165)]