28409085

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{223}}^1$

素因数の和:402

約数の個数: 48

約数和(自身を含む): 52416000

約数和(自身を除く): 24006915

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 149, 171, 223, 285, 447, 669, 745, 855, 1115, 1341, 2007, 2235, 2831, 3345, 4237, 6705, 8493, 10035, 12711, 14155, 21185, 25479, 33227, 38133, 42465, 63555, 99681, 127395, 166135, 190665, 299043, 498405, 631313, 1495215, 1893939, 3156565, 5681817, 9469695, 28409085]

約数ペア:

[(1, 28409085), (3, 9469695), (5, 5681817), (9, 3156565), (15, 1893939), (19, 1495215), (45, 631313), (57, 498405), (95, 299043), (149, 190665), (171, 166135), (223, 127395), (285, 99681), (447, 63555), (669, 42465), (745, 38133), (855, 33227), (1115, 25479), (1341, 21185), (2007, 14155), (2235, 12711), (2831, 10035), (3345, 8493), (4237, 6705)]