19851760

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{10789}}^1$

素因数の和:10825

約数の個数: 40

約数和(自身を含む): 48166560

約数和(自身を除く): 28314800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 10789, 21578, 43156, 53945, 86312, 107890, 172624, 215780, 248147, 431560, 496294, 863120, 992588, 1240735, 1985176, 2481470, 3970352, 4962940, 9925880, 19851760]

約数ペア:

[(1, 19851760), (2, 9925880), (4, 4962940), (5, 3970352), (8, 2481470), (10, 1985176), (16, 1240735), (20, 992588), (23, 863120), (40, 496294), (46, 431560), (80, 248147), (92, 215780), (115, 172624), (184, 107890), (230, 86312), (368, 53945), (460, 43156), (920, 21578), (1840, 10789)]