1612840

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{661}}^1$

素因数の和:733

約数の個数: 32

約数和(自身を含む): 3693960

約数和(自身を除く): 2081120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 661, 1220, 1322, 2440, 2644, 3305, 5288, 6610, 13220, 26440, 40321, 80642, 161284, 201605, 322568, 403210, 806420, 1612840]

約数ペア:

[(1, 1612840), (2, 806420), (4, 403210), (5, 322568), (8, 201605), (10, 161284), (20, 80642), (40, 40321), (61, 26440), (122, 13220), (244, 6610), (305, 5288), (488, 3305), (610, 2644), (661, 2440), (1220, 1322)]