15806980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{4909}}^1$

素因数の和:4948

約数の個数: 48

約数和(自身を含む): 39594240

約数和(自身を除く): 23787260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 4909, 9818, 19636, 24545, 34363, 49090, 68726, 98180, 112907, 137452, 171815, 225814, 343630, 451628, 564535, 687260, 790349, 1129070, 1580698, 2258140, 3161396, 3951745, 7903490, 15806980]

約数ペア:

[(1, 15806980), (2, 7903490), (4, 3951745), (5, 3161396), (7, 2258140), (10, 1580698), (14, 1129070), (20, 790349), (23, 687260), (28, 564535), (35, 451628), (46, 343630), (70, 225814), (92, 171815), (115, 137452), (140, 112907), (161, 98180), (230, 68726), (322, 49090), (460, 34363), (644, 24545), (805, 19636), (1610, 9818), (3220, 4909)]