28438300

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{251}}^1$

素因数の和:379

約数の個数: 72

約数和(自身を含む): 68245632

約数和(自身を除く): 39807332

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 103, 110, 206, 220, 251, 275, 412, 502, 515, 550, 1004, 1030, 1100, 1133, 1255, 2060, 2266, 2510, 2575, 2761, 4532, 5020, 5150, 5522, 5665, 6275, 10300, 11044, 11330, 12550, 13805, 22660, 25100, 25853, 27610, 28325, 51706, 55220, 56650, 69025, 103412, 113300, 129265, 138050, 258530, 276100, 284383, 517060, 568766, 646325, 1137532, 1292650, 1421915, 2585300, 2843830, 5687660, 7109575, 14219150, 28438300]

約数ペア:

[(1, 28438300), (2, 14219150), (4, 7109575), (5, 5687660), (10, 2843830), (11, 2585300), (20, 1421915), (22, 1292650), (25, 1137532), (44, 646325), (50, 568766), (55, 517060), (100, 284383), (103, 276100), (110, 258530), (206, 138050), (220, 129265), (251, 113300), (275, 103412), (412, 69025), (502, 56650), (515, 55220), (550, 51706), (1004, 28325), (1030, 27610), (1100, 25853), (1133, 25100), (1255, 22660), (2060, 13805), (2266, 12550), (2510, 11330), (2575, 11044), (2761, 10300), (4532, 6275), (5020, 5665), (5150, 5522)]