128567240

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{139747}}^1$

素因数の和:139781

約数の個数: 32

約数和(自身を含む): 301855680

約数和(自身を除く): 173288440

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 139747, 279494, 558988, 698735, 1117976, 1397470, 2794940, 3214181, 5589880, 6428362, 12856724, 16070905, 25713448, 32141810, 64283620, 128567240]

約数ペア:

[(1, 128567240), (2, 64283620), (4, 32141810), (5, 25713448), (8, 16070905), (10, 12856724), (20, 6428362), (23, 5589880), (40, 3214181), (46, 2794940), (92, 1397470), (115, 1117976), (184, 698735), (230, 558988), (460, 279494), (920, 139747)]