131355760

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71389}}^1$

素因数の和:71425

約数の個数: 40

約数和(自身を含む): 318684960

約数和(自身を除く): 187329200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 71389, 142778, 285556, 356945, 571112, 713890, 1142224, 1427780, 1641947, 2855560, 3283894, 5711120, 6567788, 8209735, 13135576, 16419470, 26271152, 32838940, 65677880, 131355760]

約数ペア:

[(1, 131355760), (2, 65677880), (4, 32838940), (5, 26271152), (8, 16419470), (10, 13135576), (16, 8209735), (20, 6567788), (23, 5711120), (40, 3283894), (46, 2855560), (80, 1641947), (92, 1427780), (115, 1142224), (184, 713890), (230, 571112), (368, 356945), (460, 285556), (920, 142778), (1840, 71389)]