20467240

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{22247}}^1$

素因数の和:22281

約数の個数: 32

約数和(自身を含む): 48055680

約数和(自身を除く): 27588440

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 22247, 44494, 88988, 111235, 177976, 222470, 444940, 511681, 889880, 1023362, 2046724, 2558405, 4093448, 5116810, 10233620, 20467240]

約数ペア:

[(1, 20467240), (2, 10233620), (4, 5116810), (5, 4093448), (8, 2558405), (10, 2046724), (20, 1023362), (23, 889880), (40, 511681), (46, 444940), (92, 222470), (115, 177976), (184, 111235), (230, 88988), (460, 44494), (920, 22247)]