20045235

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{29}}^2\times {\mathrm{227}}^1$

素因数の和:300

約数の個数: 48

約数和(自身を含む): 38128896

約数和(自身を除く): 18083661

約数列:

[1, 3, 5, 7, 15, 21, 29, 35, 87, 105, 145, 203, 227, 435, 609, 681, 841, 1015, 1135, 1589, 2523, 3045, 3405, 4205, 4767, 5887, 6583, 7945, 12615, 17661, 19749, 23835, 29435, 32915, 46081, 88305, 98745, 138243, 190907, 230405, 572721, 691215, 954535, 1336349, 2863605, 4009047, 6681745, 20045235]

約数ペア:

[(1, 20045235), (3, 6681745), (5, 4009047), (7, 2863605), (15, 1336349), (21, 954535), (29, 691215), (35, 572721), (87, 230405), (105, 190907), (145, 138243), (203, 98745), (227, 88305), (435, 46081), (609, 32915), (681, 29435), (841, 23835), (1015, 19749), (1135, 17661), (1589, 12615), (2523, 7945), (3045, 6583), (3405, 5887), (4205, 4767)]