28660280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{1229}}^1$

素因数の和:1304

約数の個数: 64

約数和(自身を含む): 71733600

約数和(自身を除く): 43073320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 53, 55, 88, 106, 110, 212, 220, 265, 424, 440, 530, 583, 1060, 1166, 1229, 2120, 2332, 2458, 2915, 4664, 4916, 5830, 6145, 9832, 11660, 12290, 13519, 23320, 24580, 27038, 49160, 54076, 65137, 67595, 108152, 130274, 135190, 260548, 270380, 325685, 521096, 540760, 651370, 716507, 1302740, 1433014, 2605480, 2866028, 3582535, 5732056, 7165070, 14330140, 28660280]

約数ペア:

[(1, 28660280), (2, 14330140), (4, 7165070), (5, 5732056), (8, 3582535), (10, 2866028), (11, 2605480), (20, 1433014), (22, 1302740), (40, 716507), (44, 651370), (53, 540760), (55, 521096), (88, 325685), (106, 270380), (110, 260548), (212, 135190), (220, 130274), (265, 108152), (424, 67595), (440, 65137), (530, 54076), (583, 49160), (1060, 27038), (1166, 24580), (1229, 23320), (2120, 13519), (2332, 12290), (2458, 11660), (2915, 9832), (4664, 6145), (4916, 5830)]