405720828

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{490001}}^1$

素因数の和:490034

約数の個数: 36

約数和(自身を含む): 1070164368

約数和(自身を除く): 664443540

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 92, 138, 207, 276, 414, 828, 490001, 980002, 1470003, 1960004, 2940006, 4410009, 5880012, 8820018, 11270023, 17640036, 22540046, 33810069, 45080092, 67620138, 101430207, 135240276, 202860414, 405720828]

約数ペア:

[(1, 405720828), (2, 202860414), (3, 135240276), (4, 101430207), (6, 67620138), (9, 45080092), (12, 33810069), (18, 22540046), (23, 17640036), (36, 11270023), (46, 8820018), (69, 5880012), (92, 4410009), (138, 2940006), (207, 1960004), (276, 1470003), (414, 980002), (828, 490001)]