28808415

素因数分解:

$3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{257}}^1$

素因数の和:368

約数の個数: 48

約数和(自身を含む): 52161408

約数和(自身を除く): 23352993

約数列:

[1, 3, 5, 9, 15, 45, 47, 53, 141, 159, 235, 257, 265, 423, 477, 705, 771, 795, 1285, 2115, 2313, 2385, 2491, 3855, 7473, 11565, 12079, 12455, 13621, 22419, 36237, 37365, 40863, 60395, 68105, 108711, 112095, 122589, 181185, 204315, 543555, 612945, 640187, 1920561, 3200935, 5761683, 9602805, 28808415]

約数ペア:

[(1, 28808415), (3, 9602805), (5, 5761683), (9, 3200935), (15, 1920561), (45, 640187), (47, 612945), (53, 543555), (141, 204315), (159, 181185), (235, 122589), (257, 112095), (265, 108711), (423, 68105), (477, 60395), (705, 40863), (771, 37365), (795, 36237), (1285, 22419), (2115, 13621), (2313, 12455), (2385, 12079), (2491, 11565), (3855, 7473)]