16780850

素因数分解:

$2^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1$

素因数の和:275

約数の個数: 48

約数和(自身を含む): 32944320

約数和(自身を除く): 16163470

約数列:

[1, 2, 5, 10, 25, 29, 50, 58, 71, 142, 145, 163, 290, 326, 355, 710, 725, 815, 1450, 1630, 1775, 2059, 3550, 4075, 4118, 4727, 8150, 9454, 10295, 11573, 20590, 23146, 23635, 47270, 51475, 57865, 102950, 115730, 118175, 236350, 289325, 335617, 578650, 671234, 1678085, 3356170, 8390425, 16780850]

約数ペア:

[(1, 16780850), (2, 8390425), (5, 3356170), (10, 1678085), (25, 671234), (29, 578650), (50, 335617), (58, 289325), (71, 236350), (142, 118175), (145, 115730), (163, 102950), (290, 57865), (326, 51475), (355, 47270), (710, 23635), (725, 23146), (815, 20590), (1450, 11573), (1630, 10295), (1775, 9454), (2059, 8150), (3550, 4727), (4075, 4118)]