2056568840

素因数分解:

$2^3\times 5^1\times {\mathrm{12889}}^1\times {\mathrm{3989}}^1$

素因数の和:16889

約数の個数: 32

約数和(自身を含む): 4628799000

約数和(自身を除く): 2572230160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3989, 7978, 12889, 15956, 19945, 25778, 31912, 39890, 51556, 64445, 79780, 103112, 128890, 159560, 257780, 515560, 51414221, 102828442, 205656884, 257071105, 411313768, 514142210, 1028284420, 2056568840]

約数ペア:

[(1, 2056568840), (2, 1028284420), (4, 514142210), (5, 411313768), (8, 257071105), (10, 205656884), (20, 102828442), (40, 51414221), (3989, 515560), (7978, 257780), (12889, 159560), (15956, 128890), (19945, 103112), (25778, 79780), (31912, 64445), (39890, 51556)]