28047495

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{151}}^1$

素因数の和:256

約数の個数: 64

約数和(自身を含む): 54282240

約数和(自身を除く): 26234745

約数列:

[1, 3, 5, 7, 15, 21, 29, 35, 61, 87, 105, 145, 151, 183, 203, 305, 427, 435, 453, 609, 755, 915, 1015, 1057, 1281, 1769, 2135, 2265, 3045, 3171, 4379, 5285, 5307, 6405, 8845, 9211, 12383, 13137, 15855, 21895, 26535, 27633, 30653, 37149, 46055, 61915, 64477, 65685, 91959, 138165, 153265, 185745, 193431, 267119, 322385, 459795, 801357, 967155, 1335595, 1869833, 4006785, 5609499, 9349165, 28047495]

約数ペア:

[(1, 28047495), (3, 9349165), (5, 5609499), (7, 4006785), (15, 1869833), (21, 1335595), (29, 967155), (35, 801357), (61, 459795), (87, 322385), (105, 267119), (145, 193431), (151, 185745), (183, 153265), (203, 138165), (305, 91959), (427, 65685), (435, 64477), (453, 61915), (609, 46055), (755, 37149), (915, 30653), (1015, 27633), (1057, 26535), (1281, 21895), (1769, 15855), (2135, 13137), (2265, 12383), (3045, 9211), (3171, 8845), (4379, 6405), (5285, 5307)]