28639890

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{1427}}^1$

素因数の和:1663

約数の個数: 48

約数和(自身を含む): 74850048

約数和(自身を除く): 46210158

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 223, 446, 669, 1115, 1338, 1427, 2007, 2230, 2854, 3345, 4014, 4281, 6690, 7135, 8562, 10035, 12843, 14270, 20070, 21405, 25686, 42810, 64215, 128430, 318221, 636442, 954663, 1591105, 1909326, 2863989, 3182210, 4773315, 5727978, 9546630, 14319945, 28639890]

約数ペア:

[(1, 28639890), (2, 14319945), (3, 9546630), (5, 5727978), (6, 4773315), (9, 3182210), (10, 2863989), (15, 1909326), (18, 1591105), (30, 954663), (45, 636442), (90, 318221), (223, 128430), (446, 64215), (669, 42810), (1115, 25686), (1338, 21405), (1427, 20070), (2007, 14270), (2230, 12843), (2854, 10035), (3345, 8562), (4014, 7135), (4281, 6690)]