121981160

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{435647}}^1$

素因数の和:435665

約数の個数: 32

約数和(自身を含む): 313666560

約数和(自身を除く): 191685400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 435647, 871294, 1742588, 2178235, 3049529, 3485176, 4356470, 6099058, 8712940, 12198116, 15247645, 17425880, 24396232, 30495290, 60990580, 121981160]

約数ペア:

[(1, 121981160), (2, 60990580), (4, 30495290), (5, 24396232), (7, 17425880), (8, 15247645), (10, 12198116), (14, 8712940), (20, 6099058), (28, 4356470), (35, 3485176), (40, 3049529), (56, 2178235), (70, 1742588), (140, 871294), (280, 435647)]