208766140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{281}}^1\times {\mathrm{307}}^1$

素因数の和:619

約数の個数: 72

約数和(自身を含む): 485177616

約数和(自身を除く): 276411476

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 281, 307, 484, 562, 605, 614, 1124, 1210, 1228, 1405, 1535, 2420, 2810, 3070, 3091, 3377, 5620, 6140, 6182, 6754, 12364, 13508, 15455, 16885, 30910, 33770, 34001, 37147, 61820, 67540, 68002, 74294, 86267, 136004, 148588, 170005, 172534, 185735, 340010, 345068, 371470, 431335, 680020, 742940, 862670, 948937, 1725340, 1897874, 3795748, 4744685, 9489370, 10438307, 18978740, 20876614, 41753228, 52191535, 104383070, 208766140]

約数ペア:

[(1, 208766140), (2, 104383070), (4, 52191535), (5, 41753228), (10, 20876614), (11, 18978740), (20, 10438307), (22, 9489370), (44, 4744685), (55, 3795748), (110, 1897874), (121, 1725340), (220, 948937), (242, 862670), (281, 742940), (307, 680020), (484, 431335), (562, 371470), (605, 345068), (614, 340010), (1124, 185735), (1210, 172534), (1228, 170005), (1405, 148588), (1535, 136004), (2420, 86267), (2810, 74294), (3070, 68002), (3091, 67540), (3377, 61820), (5620, 37147), (6140, 34001), (6182, 33770), (6754, 30910), (12364, 16885), (13508, 15455)]