20549925

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1$

素因数の和:88

約数の個数: 108

約数和(自身を含む): 44220384

約数和(自身を除く): 23670459

約数列:

[1, 3, 5, 9, 11, 15, 19, 23, 25, 33, 45, 55, 57, 69, 75, 95, 99, 115, 165, 171, 207, 209, 225, 253, 275, 285, 345, 361, 437, 475, 495, 575, 627, 759, 825, 855, 1035, 1045, 1083, 1265, 1311, 1425, 1725, 1805, 1881, 2185, 2277, 2475, 3135, 3249, 3795, 3933, 3971, 4275, 4807, 5175, 5225, 5415, 6325, 6555, 8303, 9025, 9405, 10925, 11385, 11913, 14421, 15675, 16245, 18975, 19665, 19855, 24035, 24909, 27075, 32775, 35739, 41515, 43263, 47025, 56925, 59565, 72105, 74727, 81225, 91333, 98325, 99275, 120175, 124545, 178695, 207575, 216315, 273999, 297825, 360525, 373635, 456665, 622725, 821997, 893475, 1081575, 1369995, 1868175, 2283325, 4109985, 6849975, 20549925]

約数ペア:

[(1, 20549925), (3, 6849975), (5, 4109985), (9, 2283325), (11, 1868175), (15, 1369995), (19, 1081575), (23, 893475), (25, 821997), (33, 622725), (45, 456665), (55, 373635), (57, 360525), (69, 297825), (75, 273999), (95, 216315), (99, 207575), (115, 178695), (165, 124545), (171, 120175), (207, 99275), (209, 98325), (225, 91333), (253, 81225), (275, 74727), (285, 72105), (345, 59565), (361, 56925), (437, 47025), (475, 43263), (495, 41515), (575, 35739), (627, 32775), (759, 27075), (825, 24909), (855, 24035), (1035, 19855), (1045, 19665), (1083, 18975), (1265, 16245), (1311, 15675), (1425, 14421), (1725, 11913), (1805, 11385), (1881, 10925), (2185, 9405), (2277, 9025), (2475, 8303), (3135, 6555), (3249, 6325), (3795, 5415), (3933, 5225), (3971, 5175), (4275, 4807)]