39388880

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{21407}}^1$

素因数の和:21443

約数の個数: 40

約数和(自身を含む): 95565312

約数和(自身を除く): 56176432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 21407, 42814, 85628, 107035, 171256, 214070, 342512, 428140, 492361, 856280, 984722, 1712560, 1969444, 2461805, 3938888, 4923610, 7877776, 9847220, 19694440, 39388880]

約数ペア:

[(1, 39388880), (2, 19694440), (4, 9847220), (5, 7877776), (8, 4923610), (10, 3938888), (16, 2461805), (20, 1969444), (23, 1712560), (40, 984722), (46, 856280), (80, 492361), (92, 428140), (115, 342512), (184, 214070), (230, 171256), (368, 107035), (460, 85628), (920, 42814), (1840, 21407)]