290426840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{660061}}^1$

素因数の和:660083

約数の個数: 32

約数和(自身を含む): 712866960

約数和(自身を除く): 422440120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 660061, 1320122, 2640244, 3300305, 5280488, 6600610, 7260671, 13201220, 14521342, 26402440, 29042684, 36303355, 58085368, 72606710, 145213420, 290426840]

約数ペア:

[(1, 290426840), (2, 145213420), (4, 72606710), (5, 58085368), (8, 36303355), (10, 29042684), (11, 26402440), (20, 14521342), (22, 13201220), (40, 7260671), (44, 6600610), (55, 5280488), (88, 3300305), (110, 2640244), (220, 1320122), (440, 660061)]