81252560

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{44159}}^1$

素因数の和:44195

約数の個数: 40

約数和(自身を含む): 197130240

約数和(自身を除く): 115877680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 44159, 88318, 176636, 220795, 353272, 441590, 706544, 883180, 1015657, 1766360, 2031314, 3532720, 4062628, 5078285, 8125256, 10156570, 16250512, 20313140, 40626280, 81252560]

約数ペア:

[(1, 81252560), (2, 40626280), (4, 20313140), (5, 16250512), (8, 10156570), (10, 8125256), (16, 5078285), (20, 4062628), (23, 3532720), (40, 2031314), (46, 1766360), (80, 1015657), (92, 883180), (115, 706544), (184, 441590), (230, 353272), (368, 220795), (460, 176636), (920, 88318), (1840, 44159)]