81445100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^2\times {\mathrm{53}}^1\times {\mathrm{127}}^1$

素因数の和:216

約数の個数: 108

約数和(自身を含む): 199487232

約数和(自身を除く): 118042132

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 53, 55, 100, 106, 110, 121, 127, 212, 220, 242, 254, 265, 275, 484, 508, 530, 550, 583, 605, 635, 1060, 1100, 1166, 1210, 1270, 1325, 1397, 2332, 2420, 2540, 2650, 2794, 2915, 3025, 3175, 5300, 5588, 5830, 6050, 6350, 6413, 6731, 6985, 11660, 12100, 12700, 12826, 13462, 13970, 14575, 15367, 25652, 26924, 27940, 29150, 30734, 32065, 33655, 34925, 58300, 61468, 64130, 67310, 69850, 74041, 76835, 128260, 134620, 139700, 148082, 153670, 160325, 168275, 296164, 307340, 320650, 336550, 370205, 384175, 641300, 673100, 740410, 768350, 814451, 1480820, 1536700, 1628902, 1851025, 3257804, 3702050, 4072255, 7404100, 8144510, 16289020, 20361275, 40722550, 81445100]

約数ペア:

[(1, 81445100), (2, 40722550), (4, 20361275), (5, 16289020), (10, 8144510), (11, 7404100), (20, 4072255), (22, 3702050), (25, 3257804), (44, 1851025), (50, 1628902), (53, 1536700), (55, 1480820), (100, 814451), (106, 768350), (110, 740410), (121, 673100), (127, 641300), (212, 384175), (220, 370205), (242, 336550), (254, 320650), (265, 307340), (275, 296164), (484, 168275), (508, 160325), (530, 153670), (550, 148082), (583, 139700), (605, 134620), (635, 128260), (1060, 76835), (1100, 74041), (1166, 69850), (1210, 67310), (1270, 64130), (1325, 61468), (1397, 58300), (2332, 34925), (2420, 33655), (2540, 32065), (2650, 30734), (2794, 29150), (2915, 27940), (3025, 26924), (3175, 25652), (5300, 15367), (5588, 14575), (5830, 13970), (6050, 13462), (6350, 12826), (6413, 12700), (6731, 12100), (6985, 11660)]