20550915

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{659}}^1$

素因数の和:694

約数の個数: 80

約数和(自身を含む): 45999360

約数和(自身を除く): 25448445

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 27, 33, 35, 45, 55, 63, 77, 81, 99, 105, 135, 165, 189, 231, 297, 315, 385, 405, 495, 567, 659, 693, 891, 945, 1155, 1485, 1977, 2079, 2835, 3295, 3465, 4455, 4613, 5931, 6237, 7249, 9885, 10395, 13839, 17793, 21747, 23065, 29655, 31185, 36245, 41517, 50743, 53379, 65241, 69195, 88965, 108735, 124551, 152229, 195723, 207585, 253715, 266895, 326205, 373653, 456687, 587169, 622755, 761145, 978615, 1370061, 1868265, 2283435, 2935845, 4110183, 6850305, 20550915]

約数ペア:

[(1, 20550915), (3, 6850305), (5, 4110183), (7, 2935845), (9, 2283435), (11, 1868265), (15, 1370061), (21, 978615), (27, 761145), (33, 622755), (35, 587169), (45, 456687), (55, 373653), (63, 326205), (77, 266895), (81, 253715), (99, 207585), (105, 195723), (135, 152229), (165, 124551), (189, 108735), (231, 88965), (297, 69195), (315, 65241), (385, 53379), (405, 50743), (495, 41517), (567, 36245), (659, 31185), (693, 29655), (891, 23065), (945, 21747), (1155, 17793), (1485, 13839), (1977, 10395), (2079, 9885), (2835, 7249), (3295, 6237), (3465, 5931), (4455, 4613)]