219037225

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1$

素因数の和:191

約数の個数: 72

約数和(自身を含む): 325881920

約数和(自身を除く): 106844695

約数列:

[1, 5, 11, 19, 25, 37, 55, 95, 103, 121, 185, 209, 275, 407, 475, 515, 605, 703, 925, 1045, 1133, 1957, 2035, 2299, 2575, 3025, 3515, 3811, 4477, 5225, 5665, 7733, 9785, 10175, 11495, 12463, 17575, 19055, 21527, 22385, 28325, 38665, 41921, 48925, 57475, 62315, 72409, 85063, 95275, 107635, 111925, 193325, 209605, 236797, 311575, 362045, 425315, 461131, 538175, 796499, 1048025, 1183985, 1810225, 2126575, 2305655, 3982495, 5919925, 8761489, 11528275, 19912475, 43807445, 219037225]

約数ペア:

[(1, 219037225), (5, 43807445), (11, 19912475), (19, 11528275), (25, 8761489), (37, 5919925), (55, 3982495), (95, 2305655), (103, 2126575), (121, 1810225), (185, 1183985), (209, 1048025), (275, 796499), (407, 538175), (475, 461131), (515, 425315), (605, 362045), (703, 311575), (925, 236797), (1045, 209605), (1133, 193325), (1957, 111925), (2035, 107635), (2299, 95275), (2575, 85063), (3025, 72409), (3515, 62315), (3811, 57475), (4477, 48925), (5225, 41921), (5665, 38665), (7733, 28325), (9785, 22385), (10175, 21527), (11495, 19055), (12463, 17575)]