20945156980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{461}}^1\times {\mathrm{206519}}^1$

素因数の和:207000

約数の個数: 48

約数和(自身を含む): 48087768960

約数和(自身を除く): 27142611980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 461, 922, 1844, 2305, 4610, 5071, 9220, 10142, 20284, 25355, 50710, 101420, 206519, 413038, 826076, 1032595, 2065190, 2271709, 4130380, 4543418, 9086836, 11358545, 22717090, 45434180, 95205259, 190410518, 380821036, 476026295, 952052590, 1047257849, 1904105180, 2094515698, 4189031396, 5236289245, 10472578490, 20945156980]

約数ペア:

[(1, 20945156980), (2, 10472578490), (4, 5236289245), (5, 4189031396), (10, 2094515698), (11, 1904105180), (20, 1047257849), (22, 952052590), (44, 476026295), (55, 380821036), (110, 190410518), (220, 95205259), (461, 45434180), (922, 22717090), (1844, 11358545), (2305, 9086836), (4610, 4543418), (5071, 4130380), (9220, 2271709), (10142, 2065190), (20284, 1032595), (25355, 826076), (50710, 413038), (101420, 206519)]