399366928

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{13007}}^1$

素因数の和:13135

約数の個数: 40

約数和(自身を含む): 822625920

約数和(自身を除く): 423258992

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 101, 152, 202, 304, 404, 808, 1616, 1919, 3838, 7676, 13007, 15352, 26014, 30704, 52028, 104056, 208112, 247133, 494266, 988532, 1313707, 1977064, 2627414, 3954128, 5254828, 10509656, 21019312, 24960433, 49920866, 99841732, 199683464, 399366928]

約数ペア:

[(1, 399366928), (2, 199683464), (4, 99841732), (8, 49920866), (16, 24960433), (19, 21019312), (38, 10509656), (76, 5254828), (101, 3954128), (152, 2627414), (202, 1977064), (304, 1313707), (404, 988532), (808, 494266), (1616, 247133), (1919, 208112), (3838, 104056), (7676, 52028), (13007, 30704), (15352, 26014)]