28738140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{509}}^1\times {\mathrm{941}}^1$

素因数の和:1462

約数の個数: 48

約数和(自身を含む): 80710560

約数和(自身を除く): 51972420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 509, 941, 1018, 1527, 1882, 2036, 2545, 2823, 3054, 3764, 4705, 5090, 5646, 6108, 7635, 9410, 10180, 11292, 14115, 15270, 18820, 28230, 30540, 56460, 478969, 957938, 1436907, 1915876, 2394845, 2873814, 4789690, 5747628, 7184535, 9579380, 14369070, 28738140]

約数ペア:

[(1, 28738140), (2, 14369070), (3, 9579380), (4, 7184535), (5, 5747628), (6, 4789690), (10, 2873814), (12, 2394845), (15, 1915876), (20, 1436907), (30, 957938), (60, 478969), (509, 56460), (941, 30540), (1018, 28230), (1527, 18820), (1882, 15270), (2036, 14115), (2545, 11292), (2823, 10180), (3054, 9410), (3764, 7635), (4705, 6108), (5090, 5646)]