20003445

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{251}}^1$

素因数の和:303

約数の個数: 96

約数和(自身を含む): 45287424

約数和(自身を除く): 25283979

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 23, 33, 35, 45, 55, 63, 69, 77, 99, 105, 115, 161, 165, 207, 231, 251, 253, 315, 345, 385, 483, 495, 693, 753, 759, 805, 1035, 1155, 1255, 1265, 1449, 1757, 1771, 2259, 2277, 2415, 2761, 3465, 3765, 3795, 5271, 5313, 5773, 7245, 8283, 8785, 8855, 11295, 11385, 13805, 15813, 15939, 17319, 19327, 24849, 26355, 26565, 28865, 40411, 41415, 51957, 57981, 63503, 79065, 79695, 86595, 96635, 121233, 124245, 173943, 190509, 202055, 259785, 289905, 317515, 363699, 444521, 571527, 606165, 869715, 952545, 1333563, 1818495, 2222605, 2857635, 4000689, 6667815, 20003445]

約数ペア:

[(1, 20003445), (3, 6667815), (5, 4000689), (7, 2857635), (9, 2222605), (11, 1818495), (15, 1333563), (21, 952545), (23, 869715), (33, 606165), (35, 571527), (45, 444521), (55, 363699), (63, 317515), (69, 289905), (77, 259785), (99, 202055), (105, 190509), (115, 173943), (161, 124245), (165, 121233), (207, 96635), (231, 86595), (251, 79695), (253, 79065), (315, 63503), (345, 57981), (385, 51957), (483, 41415), (495, 40411), (693, 28865), (753, 26565), (759, 26355), (805, 24849), (1035, 19327), (1155, 17319), (1255, 15939), (1265, 15813), (1449, 13805), (1757, 11385), (1771, 11295), (2259, 8855), (2277, 8785), (2415, 8283), (2761, 7245), (3465, 5773), (3765, 5313), (3795, 5271)]