161981120

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{72313}}^1$

素因数の和:72337

約数の個数: 56

約数和(自身を含む): 440826144

約数和(自身を除く): 278845024

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 140, 160, 224, 280, 320, 448, 560, 1120, 2240, 72313, 144626, 289252, 361565, 506191, 578504, 723130, 1012382, 1157008, 1446260, 2024764, 2314016, 2530955, 2892520, 4049528, 4628032, 5061910, 5785040, 8099056, 10123820, 11570080, 16198112, 20247640, 23140160, 32396224, 40495280, 80990560, 161981120]

約数ペア:

[(1, 161981120), (2, 80990560), (4, 40495280), (5, 32396224), (7, 23140160), (8, 20247640), (10, 16198112), (14, 11570080), (16, 10123820), (20, 8099056), (28, 5785040), (32, 5061910), (35, 4628032), (40, 4049528), (56, 2892520), (64, 2530955), (70, 2314016), (80, 2024764), (112, 1446260), (140, 1157008), (160, 1012382), (224, 723130), (280, 578504), (320, 506191), (448, 361565), (560, 289252), (1120, 144626), (2240, 72313)]