1280895

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1109}}^1$

素因数の和:1135

約数の個数: 32

約数和(自身を含む): 2557440

約数和(自身を除く): 1276545

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 105, 165, 231, 385, 1109, 1155, 3327, 5545, 7763, 12199, 16635, 23289, 36597, 38815, 60995, 85393, 116445, 182985, 256179, 426965, 1280895]

約数ペア:

[(1, 1280895), (3, 426965), (5, 256179), (7, 182985), (11, 116445), (15, 85393), (21, 60995), (33, 38815), (35, 36597), (55, 23289), (77, 16635), (105, 12199), (165, 7763), (231, 5545), (385, 3327), (1109, 1155)]